PART A - Highlight the answers-short explanation

The owner of an outdoor concert arena knows that the greater the amount of snow on the ground, the lower the attendance Iwill be at his venue, which seats 2500 people. He studies this and collects the following data. @- l use SALT {a} Look at the scatterplot. Is a linear model appropriate for these data? t";- Yes L? No {hj Calculate the slope and yintercept for the regression line. {Round your answers to four decimal places.) Attendance = :l (Inches of Snow) + :l {c} Use your rounded equation to predict attendance at a concert when there are '_.? inches of snow on the ground. (Round your answer to the nearest integec] |:| people The height (sidewalk to roof) of notable tall buildings in America is compared to the number of stories of the building (beginning at street level). Height (in feet) Stories 1,050 57 428 28 362 26 529 40 790 60 401 22 380 38 1,454 110 1,127 100 700 46Find the correlation coefficient r (Round your answer to four decimal places.) 0.9440 XBased on the least squares line, adding an extra story is predicted to add about how many feet to a building? (Round your answer to three decimal places.) Part (j) What is the slope of the least squares (best-fit) line? (Round your answer to three decimal places.) 114.19 XNow we need to determine how much y changes when x changes by 1 unit. Recall for a line y = a + bx, that slope = change in y We know the slope is -17, so if x changes by 1 unit, we can find change in x the change in y as follows. slope =. change in change in x -17 = change in y 1 change in y = Take for example, that when x = 1 we have y = 15 - 17(1) = -2. If x increased by 1 unit to x = 2, then y = 15 - 17(2) = . Notice that y decreased by 17 units from y = -2. If, instead, x decreased by 1 unit from 1 to x = 0, then y = 15 - 2(0) = Note that in this case, increased v by 17 units from y = -2