The operation manager of the musical instrument distributor feels that demand for bass drums may be related to number of television appearance by popular rock group Green Shades throughout the preceding month. The manager has collected the data shown in the following table:
demand for bass drums Green shades TV appearance
3 3
6 4
7 7
5 6
10 8
8 5
a) Graph these data whether to see linear equation might explain the relationship between the group's television shows and bass drum sales.
b) Using the equation calculate SST, SSE and SSR. Find out the least squares regression line for this data.
c) What is your estimate for bass drum sales if the Green Shades performed upon TV six times last month?