Which Excel function would give a p-value for a left-tailed F test to compare two sample variances?
A)=1−F.DIST(s12/s22,df1,df2)
B)=F.INV(α,df1,df2)
C)=F.DIST(s12/s22,df1,df2)
D)=F.INV(α/2,df1,df2)

Question

Quizplus · Accepted Answer

The F.DIST function is used to calculate the cumulative distribution function (CDF) for the F-test. In this case, we want to find the probability of getting an F-test statistic as extreme or more extreme than the observed value, assuming a left-tailed test. This can be calculated by dividing the smaller sample variance by the larger sample variance (s12/s22) and plugging this value into the F.DIST function, along with the degrees of freedom for the numerator (df1) and denominator (df2). The resulting output will give us the p-value for the test.

Which Excel Function Would Give a P-Value for a Left-Tailed