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John wants to compare two means. His sample statistics were x, = 22.7, s, = 5.4, n, = 9 and x2 Assuming equal variances, the test statistic is: Select one: Оа. 2.37 Ob. 2.20 Ос. 1.96 Od. Must know a to answer.

John wants to compare two means. His sample statistics were x, = 22.7, s, = 5.4, n, = 9 and x2 Assuming equal variances, the test statistic is: Select one: Оа. 2.37 Ob. 2.20 Ос. 1.96 Od. Must know a to answer.

MATLAB: An Introduction with Applications
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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John wants to compare two means. His sample statistics were x, = 22.7, s,? = 5.4, n, = 9 and x, = 20.5, s,? = 3.6, n, = 9. Assuming equal variances, the pooled variance is: Select one: Оа. 4.5 Ob. 4.9 Ос. 5.1 Od. 3.8
Transcribed Image Text:John wants to compare two means. His sample statistics were x, = 22.7, s,? = 5.4, n, = 9 and x, = 20.5, s,? = 3.6, n, = 9. Assuming equal variances, the pooled variance is: Select one: Оа. 4.5 Ob. 4.9 Ос. 5.1 Od. 3.8
John wants to compare two means. His sample statistics were x, = 22.7, s,? = 5.4, n, = 9 and x, = 20.5, s = 3.6, n, = 9. Assuming equal variances, the test statistic is: Select one: Oa. 2.37 Ob. 2.20 Ос. 1.96 Od. Must know a to answer.
Transcribed Image Text:John wants to compare two means. His sample statistics were x, = 22.7, s,? = 5.4, n, = 9 and x, = 20.5, s = 3.6, n, = 9. Assuming equal variances, the test statistic is: Select one: Oa. 2.37 Ob. 2.20 Ос. 1.96 Od. Must know a to answer.
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