Please answer all parts and show all the work for whatever question it's necessary for.

2. Dione's favorite exercise machine is a stair climber. On the "random" setting, it changes speeds at regular intervals, so the total number of simulated "floors" she climbs varies from session to session. Dione also exercises for different lengths of time each session. She decides to explore the relationship between how long she works out on the stair climber (in minutes) and the number of floors it tells her she has climbed. Dione records minutes of climbing time and number of floors climbed for 6 exercise sessions. Computer output from a linear regression analysis is shown below: Predictor Coef SE Coef T P Constant -3.822 5.458 0.70 0.522 Workout time 5.2150 0.2779 18.76 0.000 (min) I S = 2.3472 R-Sq = 98.9% R-Sq (adj) = 98.6% (a) Identify and interpret the slope and y-intercept of the regression line. If the y-intercept does not have meaning in this context, explain why not. (b) Interpret the value of s from the computer output. (c) Interpret the value of r-squared from the computer output