CAPM: Apple CAPM Data file posted on Campus Web has data about the monthly return on Apple

Inc. from $1981$ to $2005(300$ months$)$ as well as the monthly return on the whole stock market

$($measured by a value$-$weight stock market index$)$ and the monthly return on $30-$day Treasury Bills.

Use this file to answer the following questions:

a$.$ Run a regression of the excess return on Apple Inc. on the excess return on the whole market

and write down your estimated equation.

b$.$ What is Beta for Apple Inc.? Is it significant?

c$.$ What is Alpha for Apple Inc.? Is it significant?