Question

Suppose the national average for fees paid on a parking ticket (not including any court involvement) is $24.50 with a standard deviation of $6.50. Your local police department feels that they charge less than this on average. Of the next 132 parking tickets awarded, the average fee due is is $24.

Step 4 of 6: State the p-value for your test.

Step 6 of 6: Interpret your conclusion.

Answer 1

To Test L-

H0 :-  

H1 :-  

Test Statistic :-


Z = -0.8838

P value = P ( Z < -0.88 ) = 0.1884

Decision based on P value
P value = P ( Z < -0.88 ) = 0.1884
Reject null hypothesis if P value <    level of significance
P - value = 0.1884 > 0.05 ,hence we fail to reject null hypothesis
Conclusion :- Fail to reject null hypothesis

There is insufficient evidence to support the claim that  charge less than this on average.