Test Hypotheses Regarding Two Population Standard Deviations
-A Local Supermarket $\alpha = 0.05$

Short Answer

Test Hypotheses Regarding Two Population Standard Deviations
-A local supermarket claims that the variance of waiting time for its customers to be served is the lowest in the area. A competitor supermarket checks the waiting time at both supermarkets. The sample statistics are listed below. Test the local bank's hypothesis. Use $\alpha = 0.05$ .


Assume the samples were randomly selected from normal populations.