Question

Which test determines whether the variances of two sets of measurements are statistically similar or different?...

Which test determines whether the variances of two sets of measurements are statistically similar or different?

a. t test

b. G test

c. F test

d. Q test

the answer is C, please explain why and why other answers are wrong!

Math   Statistics-And-Probability   
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Answer #1

c.   F test determines whether the variances of two sets of measurements are statistically similar or different.

REASON:
In F Test for significance of difference between 2 variances

    and ,

the test statistic is:

a. t test determines whether the means of two sets of measurements are sttistically similar or different.

REASON:

In t test for significance of difference between 2 means:

b. G test determines the goodness of fit when we have one nominal variable with 2 or more values.

d. Q test is used for identification and rejection of outliers.

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