Reference no: EM132465080

A. Perform hypothesis testing with  for each of the four hypothesis statements: alpha = 0.05

1. Mean sales per week exceed 42.5 per salesperson:

2. Proportion receiving online training is less than 55%: To find p-hat, the sample proportion, you need to count how many of online, then divide it by the total.

3. Mean calls made among those with no training is at least 145:  

4. Mean time per call is 14.7 minutes: This is a two-tailed test here, you need to split the  in half for each side of the curve.

Sample Calls mean = 158.44, sample standard deviation = 19.28, n= 100

Sample Time mean = 15.23, sample standard deviation = 2.61, n = 100