RESEARCH METHODS F/ BEHAV.(LL)-W/MINTAP
6th Edition
ISBN: 9781337755016
Author: GRAVETTER
Publisher: CENGAGE L
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Chapter 15.3, Problem 7LO
To determine
the general purpose of hypothesis testing also how the test is helping the research goal.
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Why do we need to use Hypothesis testing??
Define what a hypothesis is and how it is used in the research process. How are hypotheses tested? What does it mean if a hypothesis is accepted or rejected?
A well known Maine canoe company claims to be favored by over 60% of white water canoeists. A hypothesis test is performed and you can determine that you should reject the null hypothesis. How should you state your conclusion?
Chapter 15 Solutions
RESEARCH METHODS F/ BEHAV.(LL)-W/MINTAP
Ch. 15.1 - Define the two general categories of statistics,...Ch. 15.1 - Prob. 2LOCh. 15.2 - Prob. 3LOCh. 15.2 - Prob. 4LOCh. 15.2 - Prob. 5LOCh. 15.2 - Prob. 6LOCh. 15.3 - Prob. 7LOCh. 15.3 - Prob. 8LOCh. 15.3 - Explain how sample size and sample variance...Ch. 15.4 - Identify the characteristics that differentiate...
Ch. 15.5 - Describe the two basic concerns with the...Ch. 15.5 - Describe the basic concern with measuring...Ch. 15 - In addition to the key words, you should also be...Ch. 15 - Prob. 2ECh. 15 - A researcher who is interested in examining the...Ch. 15 - Construct a frequency distribution histogram or...Ch. 15 - Under what circumstances are the median and the...Ch. 15 - Describe a distribution of scores that has a mean...Ch. 15 - Prob. 7ECh. 15 - Describe the general concept of sampling error and...Ch. 15 - Briefly explain what is meant when a researcher...Ch. 15 - Prob. 10ECh. 15 - Describe the relationship between the alpha level...Ch. 15 - Explain how increasing the size of the sample can...Ch. 15 - Prob. 13ECh. 15 - Identify the appropriate hypothesis test for each...Ch. 15 - Prob. 15ECh. 15 - Prob. 16E
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- Why can't a researcher ever "accept the null" or "accept the research hypothesis"?arrow_forwardHow does hypothesis testing help support the fields that employ the scientific method? Besides hypothesis testing, are there alternative ways to validate the research findings?arrow_forwardA researcher selects a sample and administers treatment for anxiety to the individuals in the sample. If the sample is used for a hypothesis test, what does the null hypothesis (H0) put forth about the treatment? Group of answer choices The treatment has an effect on anxiety. The treatment divides each anxiety score by a constant. The treatment multiplies each anxiety score by a constant. The treatment has no effect on anxiety.arrow_forward
- What is the relationship between an alternative and a null hypothesis? What is the proper way to state a null hypothesis? How do you propose a null hypothesis?arrow_forwardA larger treatment effect means the hypothesis test has more power. True or False?arrow_forwardThe first problem we confront in analyzing data is determining the appropriate statistical test. Under what circumstances is a t statistic used instead of a z-score in a hypothesis test? Give an example of both a t statistic and z-score.arrow_forward
- What does it mean for the results of a hypothesis test to be statistically significant?arrow_forwardCome up with you own hypothesis testing scenario. What are examples of a null and research hypothesis? And consider what it would mean if you came up with significant results?arrow_forwardTrue or False. In order to know whether a hypothesis test is one-tailed or two-tailed, the null hypothesis should be taken into consideration.arrow_forward
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