Exhibit 9-4
The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes with a standard deviation of 0.5 minutes. We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes.
-Refer to Exhibit 9-4. The p-value is between
A).005 to .01
B).01 to .025
C).025 to .05
D).05 to .10

Question

Quizplus · Accepted Answer

The Answer of Exhibit 9-4
The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes with a standard deviation of 0.5 minutes. We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes.
-Refer to Exhibit 9-4. The p-value is between
A).005 to .01
B).01 to .025
C).025 to .05
D).05 to .10

Exhibit 9-4 The Manager of a Grocery Store Has Taken a Random