Author Question: A rock band is trying to predict the number of CDs they will sell per week based on the number of ... (Read 78 times)

stock · **on:** Jul 24, 2018

A rock band is trying to predict the number of CDs they will sell per week based on the number of hits they get on their web site which has a sample clip on it. They collect data from 13 previous weeks and entered it into a statistical computer package.

For this regression study, the
SSTO = 1,017,827 and the
SSE = 18,1567.7. What is the
value of the correlation between
number of hits on the web site
and number of CDs sold?

1.17.8
2.82.2
3.90.6
4.42.2

Question 2

A rock band is trying to predict the number of CDs they will sell per week based on the number of hits they get on their web site which has a sample clip on it. They collect data from 13 previous weeks and entered it into a statistical computer package.

The least squares regression
equation is given by:
= -828 + 8.2x .

What do you predict the CD
sales to be for a week in which
the web site has 215 hits?
1.1,158
2.2,591
3.935