Please help me answer this question Homework: Chapter 12 Homework Save Score: 0.

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Please help me answer this question

Homework: Chapter 12 Homework Save Score: 0.08 of 1 pt 2 of 2 (2 complete) HW Score: 54.17%, 1.08 of 2 pts (3) 12.2.23-T Question Help A company manufactures and ships four different products. Breakage cost is expensive, and the company would like to select a mode of delivery (rail, plane, or truck) that reduces the amount of breakage. The company decided to examine the dollar amount of breakage incurred by the three modes of transportation. In order to control for fragility differences due to type of product, the company randomly assigns each product to each carrier and monitors the dollar breakage that occurs over the course of 100 shipments. The dollar breakage per shipment (to the nearest dollar) is shown in the accompanying table. Complete parts a and b Click the icon to view the data a. Was the company correct in its decision to block for type of product? Conduct the appropriate hypothesis test using a level of significance of 0.05. Determine the null and alternative hypotheses for this test. Choose the correct answer below. B. Ho: Not all means are equal (blocking is effective) HA At least two populations have different means HA All means are unequal (blocking is effective) HA Not all means are equal HA: Not Ho: At least two populations have different means all means are equal (blocking i 0 E. Howprod 1-prod2-Mprod3-Mprod4 (blocking is effective) F. What is the F-test statistic for this test? F = | | (Round to two decimal places as needed.)

Explanation / Answer

Ans:

Hypothesis statements:

Option D is correct.

Anova table:

F-statistic=0.07 (upto two decimal)

critical F0.05=FINV(0.05,2,9)=4.256

As,test statistc=0.07<4.256,So do not reject null hypothesis.

There is insuffcient evidence to conclude that the average dollar breakage per shipment is different among the three carrier types.

Rail plane truck 1 9571 5655 5714 2 5763 6047 7565 3 7425 8824 8833 4 7365 8673 6324 Mean 7531 7299.75 7109 std dev 1562.71 1681.64 1383.52

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