Explain the mean and median and first quartile and third quartile
One of the major measures of the quality of service provided by any organization is the speed with which responds to customer complaints. A large family held department store selling furniture and flooring, including carpet, had undergone a major expansion in the past several years. Especially the flooring department had expanded from two installation crews to an installation supervisor, measures and 15 installation crews. A sample of fifty complaints concerning carpet installation was selected during recent year. The data in the file furniture.xls signify the number of days among the receipt of a complaint as well as the resolution of the complaint-
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54
|
5
|
35
|
137
|
31
|
27
|
152
|
2
|
123
|
81
|
74
|
27
|
|
11
|
19
|
126
|
110
|
110
|
29
|
61
|
35
|
94
|
31
|
26
|
5
|
|
12
|
4
|
165
|
32
|
29
|
28
|
29
|
26
|
25
|
1
|
14
|
13
|
|
13
|
10
|
5
|
27
|
4
|
52
|
30
|
22
|
36
|
26
|
20
|
23
|
|
33
|
68
|
|
|
|
|
|
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Calculate the mean and median and first quartile and third quartile