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A sample of 60 items from population 1 has a sample variance of 18 while a...

A sample of 60 items from population 1 has a sample variance of 18 while a sample of 40 items from population 2 has a sample variance of 10. If we test whether the variances of the two populations are equal, the test statistic will have a value of

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Answer #1

Solution:

When the variance of the two populations are equal, the test statistic is based on F-distribution.

F = 18/10

F = 1.8

Hence, the test statistic will have a value of 1.80.

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