User In year 1, At&t stock returns were 8% and Market index returns were 6%. In year 2, At&t stock returns were 7% and Market index returns were 3%. In year 3, At&t stock returns were 10% and Market index returns were 12%. In year 4, At&t stock returns were 14% and Market index returns were 13%. In year 5, At&t stock returns were 8% and Market index returns were 9%. Part A: compute the correlation coefficient between AT&T and the market index. Part B: compute the intercept of the characteristic line for AT&T. Part C: The characteristic line for AT&T is Return = (blank) + (blank) *market return