Refer to the data file Dow Jones, which contains percentage change (X) in the Dow Jones index

Question:

Refer to the data file Dow Jones, which contains percentage change (X) in the Dow Jones index over the first five trading days of the year and percentage change (Y) in the index over the whole year.
a. Estimate the linear regression of Y on X.
b. Provide interpretations of the intercept and slope of the sample regression line.