Chick Fil A is among the few restaurants that have seen growth in profitability during the Pandemic. The restaurant in my neighborhood, Cascade, is bustling with traffic each time I pass by. A critical issue of fast-food chains is waiting time. The restaurant wishes to minimize service time as well as the variation in service time from customer to customer. The Chick-Fil-A. A manager wishes to measure the variability in waiting time between breakfast and lunch. He did a sample and got the following results:

Breakfast n1= 25and s21= 4.4

Lunchn2=21and s22 =1.9

At the .05 level of significance is there evidence that there is more variability at lunch than at Breakfast? Assume that population service times are normally distributed.