Question

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 1.5 Mile Run (n=29)
X                               y
Time (min)	VO2Max(ml/kg.min)
8.1		59.2
8.2		60
9		49.7
9.5		59.9
9.8		51.2
10		48.5
10.3		49.5
10.5		49.5
10.9		50
11		47.5
11.1		40
11.9		45.1
12		44
12.3		49.1
12.4		50
12.5		40
12.6		40
12.5		43
13		38.8
13.1		40
13.8		32
13.9		36.1
14.5		39.8
14.8		38.1
15		37.5
15.5		30
15.9		32

5. Does the line of fit, fit reasonably well?   ______________

6. What is the correlation coefficient, r, for the 1.5 mile run? r= _______

7. Does the correlation coefficient, r, substantiate your conclusion above?   _________

8. What does the r value tell you about the data values x and y?

Answer 1