A researcher hypothesized that the average number of sports that colleges offer for males is greater than the average number of sports that colleges offer for female. At α = .10 is there enough evidence to support the claim?
Males: Average = 8.6 standard deviation = 3.3 n=50
Females: Average = 7.9 standard deviation = 3.3 n=50
NEED TO USE A Z TEST! I know the answer is -15 I just need to show work to get there. Please help!