Moving Companies Are Required by the Government to Publish a Carrier

Multiple Choice

Moving companies are required by the government to publish a Carrier Performance Report each year.One of the descriptive statistics they must include is the annual percentage of shipments on which a $50 or greater claim for loss or damage was filed.Suppose two companies,Econo-Move and On-the-Move,each decide to estimate this figure by sampling their records,and they report the data shown in the following table. The owner of On-the-Move is hoping to use these data to show that the company is superior to Econo-Move with regard to the percentage of claims filed.Which test would be used to properly analyze the data in this experiment?

A) t test for the difference between two means
B) F test for the ratio of variances
C) Separate variance t test for the difference between two means
D) Z test for the difference between two proportions