The EXCEL output shows the relationship between how many sit-ups you can do and

Question

The EXCEL output shows the relationship between how many sit-ups you can do and how fast you can run 40 yards for a study of female athletes. Complete part (a) through (c) Click the icon to view the EXCEL output. a. The regression equation is 8.28 -0.020x. Find the predicted time in the 40-yard dash for a subject who can do 10 sit-ups. Sec The regression equation is 8.28 0.020x. Find the predicted time in the 40-yard dash for a subject who can do 40 sit-ups. Sec The regression equation is 8.28 -0.020x. Choose the correct regression line over this scatterplot below. o A. O B. O C. O D. 0 10203040 0 10203040 0 10203040 0 10203040 Sit-ups

Explanation / Answer

(a) Time = 8.28 - 0.02(10) = 8.08

Time = 8.28 - 0.02(40) = 7.48

Graph is option (A)

(b) Option (D) and option (C)

(c) Correlation is negative.

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