The manager of Information Services at Wilkin Investigations, a private investigation firm, is studying the relationship between
Question:
The manager of Information Services at Wilkin Investigations, a private investigation firm, is studying the relationship between the age (in months) of a combination printer, copier, and fax machine and its monthly maintenance cost. Create a scatter graph and compute the correlation coefficient. Describe the results of your analysis.
Months Monthly Cost
33 . . . . . . . . . . . . . . . . . 88
35 . . . . . . . . . . . . . . . . . 97
35 . . . . . . . . . . . . . . . . . 111
36 . . . . . . . . . . . . . . . . . 90
37 . . . . . . . . . . . . . . . . . 79
37 . . . . . . . . . . . . . . . . . 93
38 . . . . . . . . . . . . . . . . . 105
39 . . . . . . . . . . . . . . . . . 109
43 . . . . . . . . . . . . . . . . . 98
43 . . . . . . . . . . . . . . . . . 107
44 . . . . . . . . . . . . . . . . . 100
41 . . . . . . . . . . . . . . . . . 123
41 . . . . . . . . . . . . . . . . . 126
47 . . . . . . . . . . . . . . . . . 121
48 . . . . . . . . . . . . . . . . . 109
Step by Step Answer:
Statistical Techniques In Business And Economics
ISBN: 9781260239478
18th Edition
Authors: Douglas Lind, William Marchal, Samuel Wathen