Perform the required hypothesis test for two population standard deviations. Assume that independent samples havebeen randomly selected from the two populations and that the variable under consideration is normally distributed onboth populations. Use the critical-value approach.
-When 25 randomly selected customers enter any one of several waiting lines, their waiting times have a standard deviation of 5.21 minutes. When 17 randomly selected customers enter a single main waiting line, their waiting times have a standard deviation of 2.35 minutes. Do the data provide sufficient evidence to conclude that there is more variation in the waiting times when several lines are used? Perform an F-test at the 1% significance level.

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The Answer of Perform the required hypothesis test for two population standard deviations. Assume that independent samples havebeen randomly selected from the two populations and that the variable under consideration is normally distributed onboth populations. Use the critical-value approach.
-When 25 randomly selected customers enter any one of several waiting lines, their waiting times have a standard deviation of 5.21 minutes. When 17 randomly selected customers enter a single main waiting line, their waiting times have a standard deviation of 2.35 minutes. Do the data provide sufficient evidence to conclude that there is more variation in the waiting times when several lines are used? Perform an F-test at the 1% significance level.

Perform the Required Hypothesis Test for Two Population Standard Deviations