which one of these could define a "hypothesis?" responsesdivinity 2 respec talents

3.Cooler air sinks because it is denser than warmer air. They will conduct an experiment and collect data from the experiment. For this stage of the Scientific Method, it's important to use as many sources as you can find. Legal. Prior to reading this section, consider what you have learned about these terms before. True or false? The hypothesis is a simple statement that defines what you think the outcome of your experiment will be. State True or False and justify your answer: Only humans have been shown to be capable of insight. False. The more information you have on your science fair topic, the better the design of your experiment is going to be, and the better your science fair project is going to be overall. True b. Physical appearance is the best criterion for determining one species from another. False. What data would support your hypothesis.? a. The Epstein-Barr virus is the cause of infectious mononucleosis. A single study can have a variable that is both a confounder and an effect modifier. Let's take a closer look at each one of these steps. According to evolutionary theory, you are related to a bacterium, to a yeast cell, to a snake, and to a whale. According to the Red Queen hypothesis, natural selection should favor the most efficient foragers. True or False? You can collect information from your own experiences, books, the internet, or even smaller "unofficial" experiments. C) A theory falls into two broad categories: commonsense and scientific. If the statement is false, substitute a word or phrase to make the statement true. Createyouraccount. True B. , Find the following. Mycology is the scientific study of viruses. True or false? Determine whether the following statement is true (T) or false (F). There is no choices but a hypothesis is an educated guess that you predict will happen. For example, "if my hypothesis is correct, we should see ___ result when we perform ___ test.". Advertisement. Remember, theories are explanations and laws are patterns we see in large amounts of data, frequently written as an equation. They are both developed, Hypothesis tests are dsigned to measure the amount of evidence that exists against the alternative, (A) In a two-tail test of hypothesis for a population mean the decision rule is to, a. probability with which a test statistic would occur if the research hypothesis were true. The conclusion that heat is a form of energy is attributed to Joule. If the statement is false, substitute a word or phrase to make the statement true. Therefore, we can be confident that changes in X caused changes in Y. a. True or False: even when your research does not support your hypothesis, the hypothesis has A hypothesis is a proposed answer to a question based on observations. and propose an answer to the question based on what you know. It is possible for a scientific theory to be proved wrong. HYPOTHESIS is the answer you think you'll find. evolution State True or False: Chromosomes with dominant alleles on them always travel farther in electrophoresis. Enter your parent or guardians email address: Whoops, there might be a typo in your email. A Phylogeny is the evolutionary history of relationships among organisms or their genes. Determine if the following statement is true or false: There is little scientific evidence that organic foods are more nutritious than conventionally grown foods. Pasteur proposed that "wine disease" was a souring of wine caused by y. If the statement is false, substitute a word or phrase to make the statement true. A hypothesis , in a scientific context, is a testable opinion about the connection between two or more variables or a suggested explanation for some experimental wonder.. B. by the independent variable. All of the first stage of the Scientific Method -- the observation, or research stage -- is designed to help you express a problem in a single question ("Does the amount of sunlight in a garden affect tomato size?") A hypothesis is a tentative explanation that can be tested by further investigation. A theory is a well-supported explanation of observations. False. a. The Scientific Method helps to organize thoughts and procedures so that scientists can be confident in the answers they find. a- the entire scientific community accepts it b- the hypothesis is tested, Report results Determine if hypothesis is true Do background research Construct a, My Null Hypothesis is rejected and I must accept the Alternative, A truth value statement can be written in the form, 1) Developing a scientific understanding of a natural phenomenon, a. observation - prediction - hypothesis -, I am confused with hypothesis and theory. If the statement is false, substitute a word or phrase to make the statement true. Scientists disagree about the main ideas of evolutionary theory because of incomplete or conflicting evidence. Download link will automatically paste in the promo code on the sign up screen. False. Richard Leakey discovered "zinj" (OH_5). If you did the study 100 times and got 100 confidence intervals, in 95 of the 100 results, the true point estimate would lie within the given interval. False, More than one type of research control technique may be used in the same study. Accessibility StatementFor more information contact us atinfo@libretexts.org. It is the first stage in understanding the problem. - Definition, Steps & Examples. Which statement about a theory is false? b. d. None is correct. True b. Downey cells are a characteristic sign of the viral disease infectious mononucleosis. Answer true or false The Red Queen hypothesis is an evolutionary hypothesis that proposes that organisms are under constant pressure to adapt, evolve, and change in the ever changing and evolving environment they are in. State if true or false and justify your answer: An organism's fundamental niche can be larger than its realized niche but never the opposite. Penicillin has no effect on viruses. (a) True (b) False. A law is a relationship that exists between variables in a group of data. , ptation True False 2. State True or False and justify your answer: Geographic isolation is required for allopatric speciation. What are the possible reasons the hypothesis and experimental results didn't match up? Consequentialism is an ethical theory in which we decide the moral worth of an act by analyzing the consequences. Is it possible for a hypothesis to be judged as a scientifically improper yet turn out to be true? On the next page, we'll discuss the ways that you can go about designing a science fair experiment idea. Determine whether the following statement is true (T) or false (F). The Multiregional Hypothesis is a more accepted view of human evolution, versus the Out of Africa theory view of human origin, and maintains that humans originated in several places. They can help to guide you to a solid experimental setup. Theories are explanations of natural phenomena. True or False. c. They are both correct. Explore hypothesis testing examples for better understanding. Beliefs may or may not be incorrect; they just are outside the realm of science to explore. We may receive a commission for purchases made through these links. This is because the outcome of your experiment Our experts can answer your tough homework and study questions. If the statement is false, substitute a word or phrase to make the statement true. Hypothesis: Video \(\PageIndex{1}\): Whats the difference between a scientific law and theory? False, Jean-Baptiste Lamarck proposed the spontaneous generation of life as an accepted hypothesis. Relying on physical evidence, scientists tell us that the earth is 20 billion years old. Copyright 2006 - 2023, Science Made Simple, Inc. All Rights Reserved. They have a large amount of support and are able to satisfactorily explain numerous observations. Determine whether the following statement is true (T) or false (F). Koch proposed the germ theory. True. Which one of. Science can most accurately determine the time and place of our human origins. What information were you missing when you made your prediction? The hypothesis is a simple statement that defines what you think the outcome of your experiment will be. State True or False: The Biopsychosocial model is one which encompasses the concept of bidirectionality of causes and outcomes. b. Want better grades, but cant afford to pay for Numerade? State True or False and justify your answer: Integrating information from multiple sources is not only a more concise and sophisticated way to write, but it also helps to avoid unintentional plagiarism. Let's continue the example of a science fair idea about tomatoes in the garden. State True or False. Explain and verify the statement True or False. It's important to minimize experimental errors and bias, and increase confidence in the accuracy of your results. Which of the following hypotheses is NOT an appropriate form for an alternative hypothesis?Choose the correct answer below. a. A scientific law is a statement that summarizes the relationship between variables. This is known as a natural law. Educator app for They are explanations as to why we observe something. Which one of these could define a "hypothesis?" educated guess conclusion scientific prediction 3. If the statement is false, substitute a word or phrase to make the statement true. autumnmarie2005. Become a Study.com member to unlock this answer! A flawed experiment is one that (1) doesn't keep its variables under control, and (2) doesn't sufficiently answer the question that you asked of it. According to the questons the answer should be ths respectively:. B) There is one widely accepted definition of what theory is and is not. a. In the previous sections, we talked about how to pick a good topic and specific question to investigate. In order for it to be scientific, however, a scientist must be able to test the explanation to see if it works and if it is able to correctly predict what will happen in a situation. )Which of the following would not be a, comparing three treatments with a separate, hypothesisis true given the sample statistic, (1) conduct background research (2) formulate a hypothesis, (1) pose a question (2) conduct background research (3), (A) The t-distribution should always be used when n is small. Our understanding of gravity is still a work in progress. Is the statement true or false? The Red Queen hypothesis states that evolution must happen through negative frequency dependent selection to produce cycles of asexual genotypes. A theory will always remain a theory; a law will always remain a law. What do these terms mean to you? collect data, prove or disprove it, design a controlled experiment. Study with Quizlet and memorize flashcards containing terms like this is one of the first steps in scientific research. True b. True False. The theory of biological evolution is more than "just a theory." True or False: The inclusion of a control treatment is preferred, but a good reproducible scientific experiment can be performed without a control treatment. The Scientific Method is a logical and rational order of steps by which scientists come to conclusions about the world around them. True. Determine whether the statement is true (T) or false (F). 1. Heat. True or false? Determine whether the statement is true (T) or false (F). Continuing our tomato plant example, a good prediction would be: Increasing the amount of sunlight tomato plants in my experiment receive will cause an increase in their size compared to identical plants that received the same care but less light. HYPOTHESIS: "I believe that the more sunlight a tomato plant receives, the larger the tomatoes will grow. State True or False: Health Psychology is the psychological study of the prevention, treatment, and enhancement of health through the application of physiological principles and research. Usually scientific laws refer to rules for how nature will behave under certain conditions, frequently written as an equation. False. So, in order. (1) Tomato plants need sunshine to make food through photosynthesis, and logically, more sun means more food, and; (2) Through informal, exploratory observations of plants in a garden, those with more sunlight appear to grow bigger. fact theory inference conclusion I am torn. State whether the following statement is true (T) or false (F). One of the most common terms used in science classes is a "hypothesis". A. in the number of test organisms used. False, Determine whether the following statement is true (T) or false (F). All of the first stage of the Scientific Method -- the observation, or research stage -- is designed to help you express a problem in a single question ("Does the amount of sunlight in a garden affect tomato size?") and propose an answer to . Once you have formulated your hypothesis, you would _____. In everyday language a theory means a hunch or speculation. It is true that even when your research does not support your hypothesis, the hypothesis has value. Try it in the Numerade app? Get access to this video and our entire Q&A library, What is Hypothesis Testing? A) A theory is multifaceted, complex, and dynamic. Theories also allow scientists to make predictions about as yet unobserved phenomena.". False. The scientific method can never definit, A conclusion from a specific experiment is true and valid only under the conditions in which the experiment was performed. Afterwards, they will interpret their results to see if their data supports their hypothesis. An experiment is a tool that you design to find out if your ideas about your topic are right or wrong. True or false? If the statement is false, substitute a word or phrase to make the statement true. (B) A test of, i have no idea what the answer to this question is 2. If the statement is false, substitute a word or phrase to make the statement true. Then you can understand the tools scientists use for their science experiments, and use them for your own. These scientists found, after many, many tests, that certain patterns existed in the observations on gas behavior. Semmelweis proposed that cholera was a waterborne disease. A theory is a well-supported explanation of observations. True or false? 3. CONCLUSION is the answer that the experiment gives. All facts are true under the specific conditions of the observation. 2. It usually starts with: How, What, When, Who, Which, Why, or Where, this is a process of watching an experiment and noting what occurs, this is a question proposed for solution or discussion and more. Determine whether the statement is true (T) or false (F). Hypothesis testing is a procedure based on sample evidence and. True or false? State True or False and justify your answer: CA-125 and PSA are protein biomarkers used in the detection of cancer. Is the following statement true or false? True or False. If the statement is false, substitute a word or phrase to make the statement true. Acidophiles grow best at pHs greater than 9. This is a summary of the experiment's results, and how those results match up to your hypothesis. In order for a theory to change, there must be many observations or pieces of evidence that the theory cannot explain. Determine whether the following statement is true or false: Biochemical tests can be used to identify microbes that cannot be cultured in the laboratory. A common misconception is that scientific theories are rudimentary ideas that will eventually graduate into scientific laws when enough data and evidence has accumulated. Don't worry, it isn't that complicated. True b. You have two options for your conclusions: based on your results, either: You can not PROVE the hypothesis with a single experiment, because there is a chance that you made an error somewhere along the way. Learn the hypothesis testing definition and how to conduct a test using the hypothesis testing steps. While a causal hypothesis is defined as a proposed explanation, a descriptive hypothesis is defined as a proposed description. True b. "A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experimentation. If your experiment isn't designed well, you may not get the correct answer. True or false? 1.3: Hypothesis, Theories, and Laws is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts. The best evidence for cause-and-effect relationship come from a well conducted Randomized controlled trial. PREDICTION is your specific belief about the scientific idea: If my hypothesis is true, then I predict we will discover this. DNA was discovered in 1869, but it was not until 60 years later that scientists found a clue about its function. 2. True False, Case-controlled studies guard against confounding and measurement biases. b. probability, A) What happens when new evidence is found that contradicts part of a theory? What you can say is that your results SUPPORT the original hypothesis. Putting an argument into premise-conclusion form can make, a. rejecting a false null hypothesis b. rejecting a true, a. All other trademarks and copyrights are the property of their respective owners. Determine whether the following statement is true (T) or false (F). The Scientific Method is a process used to design and perform experiments. If the statement is false, substitute a word or phrase to make the statement true. True or False: A testable hypothesis can be deduced from the following information: "The teller at the bank with brown hair and brown eyes is taller than the other tellers". True or False: The chemiosmotic hypothesis states that the synthesis of ATP generates a proton gradient that leads to electron flow through an electron transport chain. (a) True (b) False. Fungi are eukaryotic microorganisms. 1) True 2) False, Hypothesis written by scientists may be influenced from past experiences. False. Using the example of the tomato experiment, here is an example of a hypothesis: TOPIC: "Does the amount of sunlight a tomato plant receives affect the size of the tomatoes?". How is a foods water footprint related to how sustainable it is to produce? a. Snapsolve any problem by taking a picture. In the coin toss exercise, the larger the number of trials, the closer the experimental result approaches the predicted results. True or False: It is important that any negative and unexpected result is not included in a lab report. * This site contains affiliate links to carefully chosen, high quality products. Determine whether the following statement is true or false. Give answers as a reduced frac, True or false? a. Which of the following cannot be a null hypothesis for a two-sample hypothesis test? To be a scientific theory carries a lot of weight; it is not just one person's idea about something. You may not even get any definitive answer at all! Theories are not guesses. copyright 2003-2023 Homework.Study.com. Hepatitis is primarily a disease of the liver. 1.4: The Scientific Method: How Chemists Think, Chapter 2: Measurement and Problem Solving, 2.2: Scientific Notation: Writing Large and Small Numbers, 2.3: Significant Figures: Writing Numbers to Reflect Precision, 2.6: Problem Solving and Unit Conversions, 2.7: Solving Multistep Conversion Problems, 2.10: Numerical Problem-Solving Strategies and the Solution Map, 2.E: Measurement and Problem Solving (Exercises), 3.3: Classifying Matter According to Its State: Solid, Liquid, and Gas, 3.4: Classifying Matter According to Its Composition, 3.5: Differences in Matter: Physical and Chemical Properties, 3.6: Changes in Matter: Physical and Chemical Changes, 3.7: Conservation of Mass: There is No New Matter, 3.9: Energy and Chemical and Physical Change, 3.10: Temperature: Random Motion of Molecules and Atoms, 3.12: Energy and Heat Capacity Calculations, 4.4: The Properties of Protons, Neutrons, and Electrons, 4.5: Elements: Defined by Their Numbers of Protons, 4.6: Looking for Patterns: The Periodic Law and the Periodic Table, 4.8: Isotopes: When the Number of Neutrons Varies, 4.9: Atomic Mass: The Average Mass of an Elements Atoms, 5.2: Compounds Display Constant Composition, 5.3: Chemical Formulas: How to Represent Compounds, 5.4: A Molecular View of Elements and Compounds, 5.5: Writing Formulas for Ionic Compounds, 5.11: Formula Mass: The Mass of a Molecule or Formula Unit, 6.5: Chemical Formulas as Conversion Factors, 6.6: Mass Percent Composition of Compounds, 6.7: Mass Percent Composition from a Chemical Formula, 6.8: Calculating Empirical Formulas for Compounds, 6.9: Calculating Molecular Formulas for Compounds, 7.1: Grade School Volcanoes, Automobiles, and Laundry Detergents, 7.4: How to Write Balanced Chemical Equations, 7.5: Aqueous Solutions and Solubility: Compounds Dissolved in Water, 7.6: Precipitation Reactions: Reactions in Aqueous Solution That Form a Solid, 7.7: Writing Chemical Equations for Reactions in Solution: Molecular, Complete Ionic, and Net Ionic Equations, 7.8: AcidBase and Gas Evolution Reactions, Chapter 8: Quantities in Chemical Reactions, 8.1: Climate Change: Too Much Carbon Dioxide, 8.3: Making Molecules: Mole-to-Mole Conversions, 8.4: Making Molecules: Mass-to-Mass Conversions, 8.5: Limiting Reactant, Theoretical Yield, and Percent Yield, 8.6: Limiting Reactant, Theoretical Yield, and Percent Yield from Initial Masses of Reactants, 8.7: Enthalpy: A Measure of the Heat Evolved or Absorbed in a Reaction, Chapter 9: Electrons in Atoms and the Periodic Table, 9.1: Blimps, Balloons, and Models of the Atom, 9.5: The Quantum-Mechanical Model: Atoms with Orbitals, 9.6: Quantum-Mechanical Orbitals and Electron Configurations, 9.7: Electron Configurations and the Periodic Table, 9.8: The Explanatory Power of the Quantum-Mechanical Model, 9.9: Periodic Trends: Atomic Size, Ionization Energy, and Metallic Character, 10.2: Representing Valence Electrons with Dots, 10.3: Lewis Structures of Ionic Compounds: Electrons Transferred, 10.4: Covalent Lewis Structures: Electrons Shared, 10.5: Writing Lewis Structures for Covalent Compounds, 10.6: Resonance: Equivalent Lewis Structures for the Same Molecule, 10.8: Electronegativity and Polarity: Why Oil and Water Dont Mix, 11.2: Kinetic Molecular Theory: A Model for Gases, 11.3: Pressure: The Result of Constant Molecular Collisions, 11.5: Charless Law: Volume and Temperature, 11.6: Gay-Lussac's Law: Temperature and Pressure, 11.7: The Combined Gas Law: Pressure, Volume, and Temperature, 11.9: The Ideal Gas Law: Pressure, Volume, Temperature, and Moles, 11.10: Mixtures of Gases: Why Deep-Sea Divers Breathe a Mixture of Helium and Oxygen, Chapter 12: Liquids, Solids, and Intermolecular Forces, 12.3: Intermolecular Forces in Action: Surface Tension and Viscosity, 12.6: Types of Intermolecular Forces: Dispersion, DipoleDipole, Hydrogen Bonding, and Ion-Dipole, 12.7: Types of Crystalline Solids: Molecular, Ionic, and Atomic, 13.3: Solutions of Solids Dissolved in Water: How to Make Rock Candy, 13.4: Solutions of Gases in Water: How Soda Pop Gets Its Fizz, 13.5: Solution Concentration: Mass Percent, 13.9: Freezing Point Depression and Boiling Point Elevation: Making Water Freeze Colder and Boil Hotter, 13.10: Osmosis: Why Drinking Salt Water Causes Dehydration, 14.1: Sour Patch Kids and International Spy Movies, 14.4: Molecular Definitions of Acids and Bases, 14.6: AcidBase Titration: A Way to Quantify the Amount of Acid or Base in a Solution, 14.9: The pH and pOH Scales: Ways to Express Acidity and Basicity, 14.10: Buffers: Solutions That Resist pH Change.

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