A. What are the null hypothesis and the alternative hypothesis? B. What are the critical value(s) (make sure to indicate what degrees of freedom were used to determine this)? C. Use SPSS to calculate your test statistic.
A. What are the null hypothesis and the alternative hypothesis? B. What are the critical value(s) (make sure to indicate what degrees of freedom were used to determine this)? C. Use SPSS to calculate your test statistic.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
![III. Statistics students were asked to indicate their political orientation (republican or democrat)
and then rated their degree of conservativeness (1 = not at all, 7= extremely). Assume that the
following two random samples of republicans' and democrats' conservativeness ratings come
from normally distributed populations that have equal variances:
Republicans: 4 5 4 3 4 6 5 75 3 5 7
Democrats:
2 3 4 1 4 3 3 1 3 1 4 4 3 3
Do republicans and democrats differ in their level of conservativeness (use a = .01, two-tailed)?
A. What are the null hypothesis and the alternative hypothesis?
B. What are the critical value(s) (make sure to indicate what degrees of freedom were
used to determine this)?
C. Use SPSS to calculate your test statistic.
D. Explain why you would or would not reject the null hypothesis.
E. Use SPSS to help you calculate Cohen's d and r2 (measures of effect size)
F. Use SPSS to calculate a 99% CI for the mean difference in conservativeness between
democrats and republicans.
MacBook Air
吕口
F3
F4
F5
F7
F8
F9
FIC](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7b65a61b-e86f-4695-9a48-c0c3183e050c%2F3c4da221-a71f-45e3-a1a2-d772b22993f1%2F8prc2r_processed.jpeg&w=3840&q=75)
Transcribed Image Text:III. Statistics students were asked to indicate their political orientation (republican or democrat)
and then rated their degree of conservativeness (1 = not at all, 7= extremely). Assume that the
following two random samples of republicans' and democrats' conservativeness ratings come
from normally distributed populations that have equal variances:
Republicans: 4 5 4 3 4 6 5 75 3 5 7
Democrats:
2 3 4 1 4 3 3 1 3 1 4 4 3 3
Do republicans and democrats differ in their level of conservativeness (use a = .01, two-tailed)?
A. What are the null hypothesis and the alternative hypothesis?
B. What are the critical value(s) (make sure to indicate what degrees of freedom were
used to determine this)?
C. Use SPSS to calculate your test statistic.
D. Explain why you would or would not reject the null hypothesis.
E. Use SPSS to help you calculate Cohen's d and r2 (measures of effect size)
F. Use SPSS to calculate a 99% CI for the mean difference in conservativeness between
democrats and republicans.
MacBook Air
吕口
F3
F4
F5
F7
F8
F9
FIC
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