Problem 3 You’re a healthcare engineering consultant and you’re analyzing the emergency room design at Pawhuska Hospital, Inc. Below you’ll find sample data for the waiting time (in minutes) of non-critical patients entering the emergency room. a. The hospital administrator wants to make the claim that average waiting time for non-critical patients is less than an hour. What is your opinion of that claim using the p-value approach? (note that you’d probably reject any null hypothesis if p-value < 0.1) b. In fact, you believe that at least a third of the non-critical patients arriving to the emergency room wait more than an hour. Test your claim with the critical value approach and 95% confidence. DATA:  Obs Wait time 1 33.5 2 33.1 3 44.4 4 58.3 5 44.2 6 92.1 7 22.1 8 82.9 9 60.5 10 84.6 11 20.6 12 89.6 13 11.8 14 86.8 15 22.2 16 119.2 17 36.6 18 58.2 19 14.9 20 55.5 21 41.9 22 26.9 23 68.2 24 51.4 25 19.7 26 53.8 27 13.5 28 17.5 29 55.8 30 23.6 31 120.7 32 72.2 33 89.6 34 29.1 35 49.6 36 41.4 37 108.6 38 58.7 39 16.9 40 96.6 41 36.1 42 72.4 43 52.4 44 22.4 45 36.1 46 85.3 47 27.9 48 11.7 49 30.9 50 11.1 51 17.3 52 31.5 53 21.5 54 97.5 55 153.9 56 117.5 57 79.2 58 41.3 59 19.3 60 63.2 61 80.4 62 31.8 63 65 64 78.8 65 86.3 66 88.1 67 23.5 68 35.6 69 100.4 70 29.7

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Problem 3
You’re a healthcare engineering consultant and you’re analyzing the emergency room design at Pawhuska Hospital, Inc. Below you’ll find sample data for the waiting time (in minutes) of non-critical patients entering the emergency room.
a. The hospital administrator wants to make the claim that average waiting time for non-critical patients is less than an hour. What is your opinion of that claim using the p-value approach? (note that you’d probably reject any null hypothesis if p-value < 0.1)
b. In fact, you believe that at least a third of the non-critical patients arriving to the emergency room wait more than an hour. Test your claim with the critical value approach and 95% confidence.

DATA: 

Obs Wait time
1 33.5
2 33.1
3 44.4
4 58.3
5 44.2
6 92.1
7 22.1
8 82.9
9 60.5
10 84.6
11 20.6
12 89.6
13 11.8
14 86.8
15 22.2
16 119.2
17 36.6
18 58.2
19 14.9
20 55.5
21 41.9
22 26.9
23 68.2
24 51.4
25 19.7
26 53.8
27 13.5
28 17.5
29 55.8
30 23.6
31 120.7
32 72.2
33 89.6
34 29.1
35 49.6
36 41.4
37 108.6
38 58.7
39 16.9
40 96.6
41 36.1
42 72.4
43 52.4
44 22.4
45 36.1
46 85.3
47 27.9
48 11.7
49 30.9
50 11.1
51 17.3
52 31.5
53 21.5
54 97.5
55 153.9
56 117.5
57 79.2
58 41.3
59 19.3
60 63.2
61 80.4
62 31.8
63 65
64 78.8
65 86.3
66 88.1
67 23.5
68 35.6
69 100.4
70 29.7
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