5. ( 16 points) Temperature in degrees Fahrenheit and number of emergency calls are shown. (Round the slope and y-intercept to 2 decimal places). Use a graphing calculator Temperature x 68 74 82 88 93 99 101 95 No.0fcallsy 7 4 8 10 11 9 13 10 (a) Find: i) yintercept : a = ( round to 3 decimal places) (b) the slope : b = ( round to 3 decimal places) (c) Linear correlation coefficient: r = ( round to 3 decimal places) (d) Find the critical values of r from the table A 6, use a. = 0.05. (IN. = (c) Is there sufcient evidence to conclude that there is a linear correlation between the two variables? Justify your answer. (d) Write the regression equation. (e) Find the best predicted value of 53 when x = 80F. Explain