Question

Which of the following says something true about the F distribution? I. To specify an F...

Which of the following says something true about the F distribution?

I. To specify an F distribution, we would need to state a numerator degrees of freedom and a denominator degrees of freedom.

II. F distributions are generally right-skewed.

III. F distributions are used in the ANOVA table to calculate the p-value of a probability expression that uses the F-statistic.

Group of answer choices

a. I only

b. II only

c. III only

d. I, II and III

Math   Statistics-And-Probability   
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Answer #1

d. I, II and III

Explanation:

We know that the F distribution is stated along with the numerator degrees of freedom and denominator degrees of freedom. We know that the F-distribution is a right-skewed distribution. We use F distribution in the different types of ANOVA tables for population means, regression model, etc. It is also useful in the F-test for difference between two population variances or standard deviations. Therefore, all three statements given in the alternatives are true for F-distribution.

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