The operations manager of a musical instrument distributor feelsthat demand for a particular type of guitar may be related to thenumber of YouTube views for a popular music video by the popularrock group Marble Pumpkins during the preceding month. The managerhas collected the data shown in the following table: (can be donein excel)
YouTube Views (1000s) | Guitar Sales |
30 | 8 |
40 | 11 |
70 | 12 |
60 | 10 |
80 | 15 |
50 | 13 |
- Graph the data to see whether a linear equation might describethe relationship between the views on YouTube and guitarsales.
- Using the equations presented in this chapter, compute the SST,SSE, and SSR. Find the least squares regression line for thedata.
- Using the regression equation, predict guitar sales if therewere 40,000 views last month.
