Soccer. Suppose like the comparison you did of the weekly time spent (in hours) on indoor and outdoor sports in Exercise 26, you want to now look into the comparison of soccer played indoor and outdoor. The random samples of 10 players playing the indoor soccer game and 14 players playing the outdoor soccer games are selected.

It reveals the following descriptive statistics for the weekly time they spent on the sport.

Soccer n Mean SD Indoor 10 72.1 3.56 Outdoor 14 60.0 1.14

a) Find the 90% confidence interval for the difference in time spent between indoor and outdoor soccer.

b) Is there a significant difference in time spent between these two types of soccer? Explain.

c) What would you like to see to check the conditions?