crophone on your computer.

$1$ are allowed: Calculator, Formula Sheet, Pen$/$Pencil$,$ Scratch Paper

Question $6$

$7$ pts

Mark Gershon, owner of a musical instrument distributorship, thinks demand for guitars may be related to the number of television appearances by the popular group Maroon $5$ during the previous month. Gershon has collected the data shown in the following table:

Maroon $5$ TV Appearances

$\backslash$table$[[3,3,6,7,7,5],[2,5,6,6,9,7]]$

Demand for Guitars

The least squares Linear Regression Model from this data is: Y$-$hat $=0\mathrm{.}87130\mathrm{.}8713+0\mathrm{.}9604x$

What is the estimate for guitar sales if Maroon $5$ performed on TV $9$ times and what is the correlation coefficient $(r)$ for this model?

Y$-$hat $=9\mathrm{.}51R=0\mathrm{.}5787$

Y$-$hat $=7\mathrm{.}07R=0\mathrm{.}7607$

$Y-$hat $=5\mathrm{.}27R=0\mathrm{.}5787$

$-$hat $=9\mathrm{.}51R=0\mathrm{.}7607$