According to a fast-food manager, the average number of customers between 8am to 11am is 10, with a variance of two. His friend from another outlet does not believe that the variance is two. He counts the number of customers in 15 other outlets and obtained the data as in Table 2.

Table 2

Outlet	Number of Customers
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15	11 10 9 10 10 11 11 10 12 9 7 9 11 10 11

1. Construct a complete hypothesis test to test the claim in (a) at= 0.05.
2. Based on your answer in (b) state a brief summary of the variance number of customers.