# Question

The manufacturer of Ice Melt claims that its product will melt snow and ice at temperatures as low as 0° Fahrenheit. A representative for a large chain of hardware stores is interested in testing this claim. The chain purchases a large shipment of 5- pound bags for distribution. The representative wants to know, with 95% confidence and within ± 0.05, what proportion of bags of Ice Melt perform the job as claimed by the manufacturer.

a. How many bags does the representative need to test? What assumption should be made concerning the population proportion? (This is called destructive testing; i. e., the product being tested is destroyed by the test and is then unavailable to be sold.)

b. Suppose that the representative tests 50 bags, and 42 of them do the job as claimed. Construct a 95% confidence interval estimate for the population proportion that will do the job as claimed.

c. How can the representative use the results of (b) to determine whether to sell the Ice Melt product?

a. How many bags does the representative need to test? What assumption should be made concerning the population proportion? (This is called destructive testing; i. e., the product being tested is destroyed by the test and is then unavailable to be sold.)

b. Suppose that the representative tests 50 bags, and 42 of them do the job as claimed. Construct a 95% confidence interval estimate for the population proportion that will do the job as claimed.

c. How can the representative use the results of (b) to determine whether to sell the Ice Melt product?

## Answer to relevant Questions

Claims fraud (illegitimate claims) and buildup (exaggerated loss amounts) continue to be major issues of concern among auto-mobile insurance companies. Fraud is defined as specific material misrepresentation of the facts of ...A bottled water distributor wants to estimate the amount of water contained in 1- gallon bottles purchased from a nationally known water bottling company. The water bottling company’s specifications state that the standard ...Suppose that in Problem 9.14, the standard deviation is 1,200 hours. a. Repeat (a) through (d) of Problem 9.14, assuming a standard deviation of 1,200 hours. b. Compare the results of (a) to those of Problem 9.14. A manufacturer of chocolate candies uses machines to package candies as they move along a filling line. Although the packages are labeled as 8 ounces, the company wants the pack-ages to contain a mean of 8.17 ounces so that ...In Problem 3.63 on page 134, you were introduced to a tea- bag- filling operation. An important quality characteristic of interest for this process is the weight of the tea in the individual bags. The file Teabags contains ...Post your question

0