Question

A psychologist is interested in comparing the demographics of grand jury members to demographics of the population to see if grand jury panels are really representative of the population. The first variable she examines is age. The percentage of people over 65 in the population is 25%, but out of 200 people empaneled for grand jury trials, 76 (38%) were aged 65 or more. She wants to know if the proportion of people over 65 on grand juries is significantly different than that proportion in the population. What test should she use? Chi-square Test of Independence Pearson's r Chi-square Goodness-of-Fit test Independent two-sample, t-test None of these choices One-way ANOVA, Between-subjects Dependent two-sample, t-test Two-way ANOVA One-way ANOVA, Repeated-measures

          A psychologist is interested in comparing the demographics of grand jury members to demographics of the population to see if grand jury panels are really representative of the population. The first variable she examines is age. The percentage of people over 65 in the population is 25%, but out of 200 people empaneled for grand jury trials, 76 (38%) were aged 65 or more. She wants to know if the proportion of people over 65 on grand juries is significantly different than that proportion in the population. What test should she use?

Chi-square Test of Independence
Pearson's r
Chi-square Goodness-of-Fit test
Independent two-sample, t-test
None of these choices
One-way ANOVA, Between-subjects
Dependent two-sample, t-test
Two-way ANOVA
One-way ANOVA, Repeated-measures

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A psychologist is interested in comparing the demographics of grand jury members to demographics of the population to see if grand jury panels are really representative of the population. The first variable she examines is age. The percentage of people over 65 in the population is 25%, but out of 200 people empaneled for grand jury trials, 76 (38%) were aged 65 or more. She wants to know if the proportion of people over 65 on grand juries is significantly different than that proportion in the population. What test should she use?

Chi-square Test of Independence
Pearson's r
Chi-square Goodness-of-Fit test
Independent two-sample, t-test
None of these choices
One-way ANOVA, Between-subjects
Dependent two-sample, t-test
Two-way ANOVA
One-way ANOVA, Repeated-measures

Added by Michael P.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

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Solved by Expert Sri K

03/25/2023

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The psychologist wants to compare the proportion of people over 65 in the population to the proportion of people over 65 on grand juries. Show more…

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