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Question: Air Force servicemen and servicewomen were tested for maximal oxygen use in a 12 min distance run...

Air Force servicemen and servicewomen were tested for maximal oxygen use in a 12 min distance run versus a 1.5 mile run. The participant runs on a level terrain for the prescribed distance. The technicians records the participant’s time to the closet second, the heart rate for 15 s immediately after the participant crosses the finish line and then estimate the VO₂ max consumption using a Wilmore and Bergfeld fitness table.  

Data 12 Min Distance (n=25)
x	y
Miles	VO2Max(ml/kg.min)
1.1	23.2
1.15	30
1.2	30
1.15	32.5
1.25	36.3
1.26	37
1.28	40
1.31	32.3
1.3	35
1.38	40
1.4	45.1
1.43	47.5
1.45	50
1.5	46.2
1.6	41
1.65	46.4
1.67	49
1.67	50
1.7	48
1.8	47.5
1.85	51.5
1.9	59.8
2	49.8
2.15	60
2.2	59

a. What is the correlation coefficient, r, for 12 min. distance run? r= _______
b. Write the equation of the least-squares line( line of fit). ______________________________________
c. What is the marginal change for the 1 min of distance to one ml/kg.min. of oxygen consumption?
d. If the 12 min distance is 2.3 miles, what is the amount of oxygen consumed?

Please do the hypothesis test on this as well. Thank you

Answer 1