PROBLEM 2 – TRAFFIC SAFETY Situation: The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week. A sample of 420 accidents was...

PROBLEM 2 – TRAFFIC SAFETY

Situation:

The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week. A sample of 420 accidents was collected. It is believed that the distribution of the accidents varies based on the day of the week.

Action:

Using the Chi-square Goodness of fit test and either Excel or Minitab, determine whether the proportion of accidents varies among the days of the week. Use a .01 level of significance and the following observed frequencies for accidents. Use the hypothesis testing procedure appropriate for this problem to help you make a decision.

1. 
   SHOW THE Ho AND Ha APPROPRIATE FOR THIS PROBLEM
   


2. 
   WHAT IS THE P-VALUE FOR THIS PROBLEM?
   


3. 
   COMPARE P-VALUE TO PROBLEM STATEMENT SPECIFIED SIGNIFICANCE VALUE AND STATE WHETHER Ho SHOULD OR SHOULD NOT BE REJECTED
   


4. 
   BASED ON WHETHER Ho IS REJECTED/NOT REJECTED, STATE WHETHER THE DISTRIBUTION OF THE ACCIDENTS VARIES BASED UPIN THE DAY OF THE WEEK.