Assume that Friday morningtaxi-cab rides have times with a standard deviation of =9.9 minutes. A cab driver records times of rides during a Friday afternoon time period and obtains thesestatistics: n=14, x=20.4 minutes, s=13.6 minutes. Use a 0.01 significance level to test the claim that these Friday afternoon times have greater variation than the Friday morning times. Assume that the sample is a simple random sample selected from a normally distributed population.

Let denote the population standard deviation of Friday afternooncab-ride times. Identify the null and alternative hypotheses.

H0:

H1:

(Type integers or decimals. Do notround.)

Identify the test statistic.

(Round to two decimal places asneeded.)

Identify theP-value.

(Round to three decimal places asneeded.)

State the conclusion about the nullhypothesis, as well as the final conclusion that addresses the original claim.

Accept or Fail to reject or Reject the null hypothesis. There is or is not sufficient evidence to support or warrant rejection of the claim that the Friday afternooncab-ride times have greater variation than the Friday morning times.