STATISTICAL TECHNIQUES AND TOOLS
MULTIPLE REGRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which one is correct about hypothesis test?
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We can use F test if the null contains only equality restrictions
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We can write t2=F when there is 2 restrictions
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Critical values for the left sided and right sided t tests are same.
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The null hypothesis can include strict inequality restriction.
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Explanation:
Detailed explanation-1: -An F-test (Snedecor and Cochran, 1983) is used to test if the variances of two populations are equal. This test can be a two-tailed test or a one-tailed test. The two-tailed version tests against the alternative that the variances are not equal.
Detailed explanation-2: -F-statistics are the ratio of two variances that are approximately the same value when the null hypothesis is true, which yields F-statistics near 1.
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