Answered: A researcher wants to know if there are…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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A researcher wants to know if there are differences in aggressive behavior between 5^th graders, 6^th graders, and 7^th graders. Which of the following would the researcher most likely rely on?

a. Repeated-measures t-test

b. Analysis of variance

c. Correlation

d. None of the above

A researcher wants to know if exercise reduces anxiety in older people. She recruits a sample of elderly individuals and measures their anxiety using Smith’s Anxiety Scale (2012). Next, she has each individual engage in modest exercise for 20 minutes. Finally, she measures their anxiety once more. Which of the following would the researcher most likely be using?

a. Repeated-measures t-test

b. Analysis of variance

c. Chi-square test for goodness of fit

d. Correlation

e. None of the above

If calculated by hand, which of the following statistical analyses involves using one or more mean value?

a. Repeated-measures t-test

b. Analysis of variance

c. Correlation

d. All of the above

e. None of the above

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