The following data represent the wait time, in minutes, for customers calling Dell technical support. 14...
The following data represent the wait time, in minutes, for customers calling Dell technical support.
| 14 | 21 | 37 | 24 | 19 | 12 | 16 | 69 | 13 |
The interquartile range is ________.
|
7 minutes |
||
|
10 minutes |
||
|
12 minutes |
||
|
9 minutes |
Homework Answers
Data arranged in ascending order will be:
12, 13, 14, 16, 19, 21, 24, 37, 69
Hence,
First quartile = Median of first 5 terms = 3rd term = 14
Third quartile = Median of last 5 terms = 8th term = 24
Therefore,
Interquartile range = 24 - 14 = 10 minutes
Option B is correct.
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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
27 13
28 15
29 13
30 15
31 36
32 40
33 ...
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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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