Copy machine use the average number of pages a person copies

Copy Machine Use A store manager  hypothesizes that the average number of pages a person copies on

the store’s copy machine is less than 40. A sample of 50 customers’ orders is selected. At a = 0.01, is there enough evidence to support the claim? Use the P-value hypothesis-testing method. Assume s = 30.9.

 

 

 

2	2	2	5	32
5	29	8	2	49
21	1	24	72	70
21	85	61	8	42
3	15	27	113	36
37	5	3	58	82
9	2	1	6	9
80	9	51	2	122
21	49	36	43	61
3	17	17	4	1