Question 24 of 25 • Advanced Algebra: Concepts and Connections_TC_Online Learning
A manager of a grocery store wants to determine if consumers are spending more than the national average. The national average is $150.00 with a standard deviation of $30.20. The manager collects 40 random receipts and finds that the average is $160. Complete a hypothesis test with a significance level of 2.5% to determine if the average customer spends more in his store than the national average. Which of the following is a valid conclusion for the manager based on this test?
Answer
A
The customers spend more than the national average in his store.
B
The manager should decrease prices in his store.
C
The customers do not spend more than the national average in his store.
D
The customers in his store just come from a rich neighborhood.