A local Quick Trip wants to test the hypothesis that the number of customers that buy gasoline are constant through-out the week.The manager does not agree that the sales are constant through-out the week.

a.State the null and alternative hypothesis.

b.Given the following counts of customers who bought gas each day of the week, test the manager's claim using a = 0.5.

Day of the week Mon Tue Wed Thur Fri Sat Sun

Number of sales 18 23 14 15 17 21 14