Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 1, Problem 12TYU
Summary Introduction
To review:
The reason behind the proposal of the null hypothesis in addition to research hypothesis while designing an experiment.
Introduction:
Whenever an experiment is proposed, a hypothesis is given which states the possible outcome of that experiment. The hypothesis is then proved correct or incorrect by conducting experiments. On the other hand, a null hypothesis states that there is no statistical difference between the two measured variables in an experiment. It is denoted by
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Compare and contrast random and systematic experimental errors with specific examples either real or fictitious. Explain how these types of errors can be identified and reduced in an experiment.
Why is it important to have a control for an experiment?
Explain why we need to control variables that are not being tested in an experiment?
Chapter 1 Solutions
Biological Science
Ch. 1 - Anton van Leeuwenhoek made an important...Ch. 1 - What does it mean to say that a characteristic is...Ch. 1 -
6. Could both the food competition hypothesis and...Ch. 1 - What does it mean to say that experimental...Ch. 1 - The term evolution means that _____ change through...Ch. 1 - In biology, to what does the term fitness refer?Ch. 1 - Prob. 7TYUCh. 1 - What did Linnaeus' system of naming organisms...Ch. 1 - Prob. 9TYUCh. 1 - Explain how selection occurs during natural...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What is the difference between an independent and dependent variable. Provide an example of each from a hypothetical experiment.arrow_forwardRefer to the section “The Big Picture: Experimental Design” a. What is the purpose of a correlative (observational) study?b. List two limitations of a correlative study.c. What is the purpose of a causative (manipulative) study?arrow_forwardWhat are the hypothesis, positive and negative controls of Griffith's experiment?arrow_forward
- You observe that every time your neighbor, who always wears a yellow hat, walks out his front door, he gets dive bombed by a crow. From this observation, what is a testable hypothesis? What is your prediction based on your hypothesis? Please design an experiment to test this hypothesis and prediction. You must identify the independent and dependent variables, as well as at least 2 control variables, and your experiment must contain an experimental group and a control grouparrow_forwardIn an experiment, the control group is used to: a Change the variable b Provide a baseline for comparison with the test group c add additional non-dependent variables d demonstrate correlation rather than causation e generate hypothesesarrow_forwardWhy do scientists design experiments to disprove the hypothesis they are testing instead of trying to prove that the hypothesis is correct?arrow_forward
- You are asked to draw and explain the goal of the Meselson-Stahl (1958) Experiment as outlined in the classroom. You need to draw your own diagram and use short sentences to explain the steps and/or important points, deductions. Clearly state what happens at each step.arrow_forwardExplain, the ‘Null hypothesis’ term by through an example.arrow_forwardExplain the factors that affect the validity of experimental data (controls, bias, correlation, statistics).arrow_forward
- A properly designed experiment contains the following: positive and negative controls and experimental conditions. positive control and experimental conditions. positive and negative controls control and experimentalarrow_forwardThe purpose of the constant is to: a. allow for adjustment of the control b. eliminate other potential factors/variables in the experiment c. allow for the dependent variable to show the necessary outcome d. help prove the hypothesis correctarrow_forwardProvide an example of a research project in your hometown where you would choose to use a t-test for independent samples. Would you use a one-tail or two-tail test, and why? What is your null hypothesis and research hypothesis? If you have a sample size of 500, should you interpret the statistical significance or the effect size?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Introduction to the NIOSH Manual of Analytical Methods Fifth edition; Author: Centers for Disease Control and Prevention (CDC);https://www.youtube.com/watch?v=B5rUrKLMoas;License: Standard Youtube License