A candidate for sheriff claims that she will reduce emergency response time belo

Question

A candidate for sheriff claims that she will reduce emergency response time below the national average if elected. The national average (population average) is 15 minutes After she is elected, a sample of the response times in her area is measured and averages 12 minutes. What test would be used to determine whether this sample differs significantly from the population? O independent samples t test O z-test O related samples t test one sample t test Question 9 The students taking a class at south campus competed with the students taking the same class at center campus to see who could get the highest grade on a departmental exam. The appropriate design for testing the significance of the difference between the means is O one-sample t-test. O related samples t-test O z-test O independent samples t-test

Explanation / Answer

8) OPtion - d) one sample t-test.

9) Option - d) independent samples t-test.

                       

                        

                    

                 

     

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