Question

1. A company is testing how different compensation plans might affect a salespersons performance. The company takes a sample of 100 sales representatives and puts 50 on compensation plan “A” and the other 50 on compensation plan “B”. They do this for one quarter (3 months) and look at the total sales in dollars for each salesperson at the end of the quarter. How can we tell if there is a statistically significant difference between the two compensation plans.

 

2. A health club is interested in how the supplements they sell affect weight loss in their clients. Currently the health club is selling three different weight loss supplements (Supplement “X”, Supplement “Y” and Supplement “Z”). Theclub takes a sample of 60 clients and gives a month’s supply of “X” to 20, “Y” to 20 and “Z” to 20. They weigh each member of the sample when they are given the supplement and then again at the end of the month so they can determine total weight loss over the month period. How do we tell if there is any difference between the three supplements with regard to weight loss?

please help me

Answer 1