To see if basketball players improve or get worse as they age we take a random...

To see if basketball players improve or get worse as they age we take a random sample of players who compete at both the age of 25 and the age of 30 and find their scoring average for the season at those ages with the results below. Use a hypothesis test to determine if there is evidence that there is a difference in mean points scored between the two ages. Use a significance level of 0.05.

Player 1 2 3 4 5 6 7

Age 25 average 21.3 15.2 7.8 8.2 11.8 17.3 4.6

Age 30 average 19.2 12.8 9.2 6.4 7.4 14.2 2.1

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