Question

A police department released the numbers of calls for the different days of the week during the month of October, as shown in the table to the right. Use a 0.01?

significance level to test the claim that the different days of the week have the same frequencies of police calls. What is the fundamental error with this analysis?

Day Frequency
Sun 156
Mon 210
Tues 220
Wed 247
Thurs 179
Fri 213
Sat 231

Determine the null and alternative hypotheses. H0
A. Police calls occur with the same frequency on the different days of the week.

B. Police calls occur with all different frequencies on the different days of the week.

C. At least two days have a different frequency of calls than the other days.

D. At least one day has a different frequency of calls than the other days.

Answer 1

The null and alternative hypotheses for testing whether the different days of the week have the same frequencies of police calls are provided. The fundamental error with this analysis is explained.

Step-by-step explanation:

The null and alternative hypotheses for testing whether the different days of the week have the same frequencies of police calls are as follows:

1. H0: Police calls occur with the same frequency on the different days of the week.
2. Ha: At least one day has a different frequency of calls than the other days.

The fundamental error with this analysis is that it does not consider the alternative hypothesis that at least one day has a different frequency of calls than the other days, which is necessary for a hypothesis test.