Using the data in Problem 4-10, test to see if there is a statistically significant relationship between sales and YouTube views at the 0.05 level of significance. Use the formulas in this chapter and Appendix D.
In Problem 4-10, The operations manager of a musical instrument distributor feels that demand for a particular type of guitar may be related to the number of YouTube views for a music video by the popular rock group Marble Pumpkins during the preceding month. The manager has collected the data shown in the following table:
YouTube Guitar
Views (1,000s) Sales
30 .......... 8
40 .......... 11
70 .......... 12
60 .......... 10
80 .......... 15
50 .......... 13
Solution:
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