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A sample of 30 MBA students are asked to log the exact amount of time they spent working on QM in the previous week. The data are below:
student
Time (hours)
1
13.26
2
9.73
3
13.6
4
12.6
5
6
12.89
7
2.03
8
4.38
9
17.69
10
4.12
11
25.91
12
6.89
13
5.01
14
12.47
15
14.79
16
19.4
17
8.33
18
15.75
19
12.39
20
3.31
21
5.31
22
3.87
23
4.43
24
12.03
25
3.24
26
9.23
27
8.13
28
29
11.21
30
22.82
Required:
1. Calculate Mean and Median time spent working on QM.
2. Calculate the Variance and Standard Deviation of time spent working on QM.
3. Calculate the 25th and 75th percentile of time spent working on QM.
4. Calculate the Coefficient of Skewness and the Coefficient of Variation for time spent working on QM.
5. Using an appropriate technique, present the time spent working on QM data graphically.
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