Question: 40
(Choose 1 answer)
(See picture)
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
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.
Econo-Move
On-the-Move
Total shipments sampled
900
Number of shipments with a daim ≥$50 162
750
60
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?
