Refer to the data below which contains the percentage change (X) in a stock market index over the first five trading days of the year and percentage change (Y) in the index over the whole year. Complete parts a and b. (X) 1.6 0.3 - 0.2 2.9 () 2.4 -1.6 - 1.6 5.4 - 1.2 1.3 14.8 - 9.3 1.5 - 4.8 19.6 20.3 -0.8 0 - 3.6 27.8 22.8 2.3 11.8 28 - 4.3 20.5 - 1.2 a. Estimate the linear regression of Y on X. (Round to four decimal places as needed.) b. Provide interpretations of the intercept and slope of the sample regression line. For a one percent over the first five trading days of the year, estimates would predict a change of % over the whole year. If there is a zero percent change over the first five trading days of the year, estimates would predict a change of 7% over the whole year