The following data gives surgery times (in minutes) for 9 randomly selected hip replacement patients. 137...
The following data gives surgery times (in minutes) for 9 randomly selected hip replacement patients.
137 127 143 130 134 135 130 163 191
Can we conclude the typical hip replacement surgery time is more than 120 minutes using a 5%
significance level?
Homework Answers
The statistical software output for this problem is :
One sample T hypothesis test:
μ : Mean of variable
H0 : μ = 120
HA : μ > 120
Hypothesis test results:
| Variable | Sample Mean | Std. Err. | DF | T-Stat | P-value |
|---|---|---|---|---|---|
| Data | 143.33333 | 6.9502198 | 8 | 3.357208 | 0.005 |
P-value = 0.005
P-value < 0.05
Reject the null hypothesis .
we can conclude the typical hip replacement surgery time is more than 120 minutes using a 5%
significance level .
Add Answer to:
The following data gives surgery times (in minutes) for 9
randomly selected hip replacement patients.
137...
1. A hospital administrator randomly selected 64 patients and measured the time (in minutes) between when...
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data: (copy and paste in excel to view columns in alignment) Sample Repair Time (days) 1 ...
data: (copy and paste in excel to view columns in alignment)
Sample Repair Time (days)
1 12
2 17
3 9
4 16
5 10
6 18
7 12
8 14
9 15
10 14
11 14
12 8
13 11
14 10
15 8
16 8
17 14
18 12
19 14
20 13
21 12
22 15
23 15
24 10
25 24
26 17
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data: (copy and paste in excel to view columns in alignment)
Sample Repair Time (days)
1 12
2 17
3 9
4 16
5 10
6 18
7 12
8 14
9 15
10 14
11 14
12 8
13 11
14 10
15 8
16 8
17 14
18 12
19 14
20 13
21 12
22 15
23 15
24 10
25 24
26 17
27 13
28 15
29 13
30 15
31 36
32 40
33 ...
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