Question

6) The YourMoney Bank claims that the mean waiting time of customers for service at the drive through window is 3 minutes. a) State the Hypothesis to show the mean waiting time for service different than 3 minutes. b) Choose a level of a. Use a= 0.05 for this problem. c) To test the hypothesis, the quality-assurance department took a sample of 50 customers and records their waiting time in minutes. The data appear in the YourMoney worksheet of the HW1 data workbook on Moodle. Calculate necessary statistics to test the hypothesis. d) Sketch the sampling distribution. Include the critical value and test statistic e) Draw a conclusion and report that in the problem context. f) Calculate the p-value for the hypothesis test

	Waiting
Customer	Time
1	2.0
2	2.2
3	2.5
4	2.6
5	1.8
6	2.9
7	2.6
8	1.7
9	2.1
10	2.1
11	4.1
12	4.5
13	3.8
14	2.5
15	3.2
16	3.4
17	0.5
18	0.9
19	2.0
20	1.5
21	4.1
22	2.9
23	3.7
24	1.9
25	4.7
26	2.5
27	4.5
28	4.4
29	2.9
30	1.7
31	1.8
32	2.3
33	2.7
34	3.9
35	0.5
36	1.7
37	2.0
38	1.8
39	2.8
40	2.9
41	3.7
42	3.1
43	2.3
44	2.7
45	1.8
46	1.9
47	1.8
48	2.2
49	2.9
50	3.5

Answer 1