Sports. Sports are an important form of physical activity that improves one’s blood circulation and ensures physical well-being. There are broadly two categories based on where the sport is played: indoor and outdoor sports.

A comparison of the weekly time spent (in hours) by 25 individuals on indoor and outdoor sports are recorded, and it yields the following information:

Sport N Mean StDev Minimum Median Maximum Indoor 25 5.27 3.51 4.67 5.11 6.03 Outdoor 25 4.96 1.79 4.29 5.02 5.14

a) Create a 95% confidence interval for the difference in the mean weekly time spent (in hours) by 25 individuals on indoor and outdoor sports. (df from technology is 37.18)

b) Interpret your interval in context.

c) Does it appear that the time spent on one category of sport is more on average than the other category of sport?

d) What is the margin of error for this interval?

e) Would you expect a 99% confidence interval to be wider or narrower? Explain.

f) If you computed a 99% confidence interval, would your conclusion in part c change? Explain.