Manager of a grocery store wants to determine if consumers are spending more than the national average. The ni
verage is $150.00 with a standard deviation of $30.20. The manager collects 40 random receipts and finds that the
$160. Complete a hypothesis test with a significance level of 2.5% to determine if the average customer spends n
ore than the national average. Which of the following is a valid conclusion for the manager based on this test?
The customers spend more than the national average in his store
The manager should decrease prices in his store.
The customers do not spend more than the national average in his store.
The customers in his store just come from a rich neighborhood.