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.Thep-value is

Select one:

a.

0.048

b.

0.024

c.

0.02

d.

0.05 - 0.10

Clear my choice