It has been suggested that night shift-workers show more variability in their output levels than day workers. Below, you are given the results of two independent random samples.
a.State the null and alternative hypotheses to be tested.
b.Compute the test statistic.
c.The null hypothesis is to be tested at the 5% level of significance. State the decision rule for the test.
d.What do you conclude?

Question

It has been suggested that night shift-workers show more variability in their output levels than day workers. Below, you are given the results of two independent random samples.  
a.State the null and alternative hypotheses to be tested.
b.Compute the test statistic.
c.The null hypothesis is to be tested at the 5% level of significance. State the decision rule for the test.
d.What do you conclude?

Quizplus · Accepted Answer

The Answer of It has been suggested that night shift-workers show more variability in their output levels than day workers. Below, you are given the results of two independent random samples.  
a.State the null and alternative hypotheses to be tested.
b.Compute the test statistic.
c.The null hypothesis is to be tested at the 5% level of significance. State the decision rule for the test.
d.What do you conclude?

It Has Been Suggested That Night Shift-Workers Show More Variability