Reference no: EM132856861

A retailer selects random sample of 12 customers to test a new loyalty discount program. Before the program, the average purchase made by customers was US$100.

After enrolling in the discount program the purchases made by these customers were:

116 111 101 120 99 94 106 115 107 101 110 92

The retailer would like to know whether the discounts increased average spending, you are asked to conduct the following hypothesis to test with the sample:

H0: μ ≤ 100

Ha: μ > 100

1. What is the corresponding t-statistic? (Round to two decimal places in the form of 0.00)
2. What is the corresponding p-value? (Round to two decimal places in the form of 0.00)
3. Do the discounts increase average spending