step by step would be great

4. A health wellness professional would like to examine the relationship between commute times in minutes (x) and a score on a healthways well-being composite score (y): ommute time 5 15 25 35 50 72 105 ell-being composite score 69.2 68.3 67.5 67.1 66.4 66.1 63.9 a) Determine the least squares regression line and predict the well-being composite score for an individual with a 55 minute commute. b) Interpret the slope of the least squares regression line in terms of commute time and well-being composite store. c) Test Hoi B = -0.03 vs. Ha: 8