Question 4For each of the studies described in questions 4a) and 4b), indicate the appropriatestatistical test for analyzing the relationship between the variables. Assume that the underlying assumptions of the tests have been satisfied.a) A researcher tested the relationship between college students’ need for achievement as assessed on a 20-item test and their grade point averages. Explain your decision.b) A consumer psychologist studied the relationship between gender and preference forFord, Chevrolet, and Chrysler cars. One hundred men and 100 women were interviewed and asked which make they preferred. Explain your decision.c) A person who claims to have psychic powers tries to predict the outcome of a roll ofa die on each of 100 trials. He correctly predicts 21 rolls. Using an alpha level of 0.05 as a criterion, what should we conclude about the person’s claim?

Name: Question 4For each of the studies described in questions 4a) and 4b),
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Description: Question 4For each of the studies described in questions 4a) and 4b), indicate the appropriatestatistical test for analyzing the relationship between the variables. Assume that the underlying assumptions of the tests have been satisfied.a) A research

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Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

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Question 4

For each of the studies described in questions 4a) and 4b), indicate the appropriate

statistical test for analyzing the relationship between the variables. Assume that the underlying assumptions of the tests have been satisfied.

a) A researcher tested the relationship between college students’ need for achievement as assessed on a 20-item test and their grade point averages. Explain your decision.
b) A consumer psychologist studied the relationship between gender and preference for

Ford, Chevrolet, and Chrysler cars. One hundred men and 100 women were interviewed and asked which make they preferred. Explain your decision.

c) A person who claims to have psychic powers tries to predict the outcome of a roll of

a die on each of 100 trials. He correctly predicts 21 rolls. Using an alpha level of 0.05 as a criterion, what should we conclude about the person’s claim?

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