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Would like the answers for 15 for this Case Study Problem within the hour if possible I have attached

QUESTION 1
35
30
25
20
15
10
5
0 PM OC TC LE QUESTION 2
Descriptive statistics from excel (2007 -2008)
PM
Mean
Standard
Error
Count 20.21
1.0859
61
20 OC
Mean
Standard
Error
Count 12.635
0.7447…
Statistics and Probability