24. A. B. C. D. Which of the following is FALSE? If the null hypothesis states that there is no difference between the mean net income of retail stores in Chicago and New York City, then the test is two-tailed. When the standard deviations are equal but unknown, a test for the differences between two population means has n - 1 degrees of freedom. When dependent samples are used to test for differences in the means, we compute paired differences. If two dependent samples of size 20 are used to test the difference between the means, the degrees of freedom for a t-statistic are 19.

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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24.
A.
B.
C.
D.
Which of the following is FALSE?
If the null hypothesis states that there is no difference between the mean net income of
retail stores in Chicago and New York City, then the test is two-tailed.
When the standard deviations are equal but unknown, a test for the differences between
two population means has n - 1 degrees of freedom.
When dependent samples are used to test for differences in the means, we compute
paired differences.
If two dependent samples of size 20 are used to test the difference between the means,
the degrees of freedom for a t-statistic are 19.
Transcribed Image Text:24. A. B. C. D. Which of the following is FALSE? If the null hypothesis states that there is no difference between the mean net income of retail stores in Chicago and New York City, then the test is two-tailed. When the standard deviations are equal but unknown, a test for the differences between two population means has n - 1 degrees of freedom. When dependent samples are used to test for differences in the means, we compute paired differences. If two dependent samples of size 20 are used to test the difference between the means, the degrees of freedom for a t-statistic are 19.
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