The police department of Youbet, Michigan, is considering the purchase of new radar guns. On the average, the guns presently used by the department can detect a speeding vehicle at a distance of 2217 feet. In order to demonstrate the new radar guns, the manufacturer has allowed the Youbet police department to use the guns for a short period of time. A random sample of 20 days in action shows that the new guns can detect a speeding vehicle at 2230 feet (mean) with a standard deviation of 72 feet. If the old guns and the new guns are equally accurate, should the department purchase the new radar guns?
Answer to relevant QuestionsLast year the city of Goose Pimple, Vermont, paid an average of $3,261 per employee in health care costs (including insurance and additional claims). This year the city management decided that they will contract with Grimms ...The village of Whitefish Bay uses a private insurance carrier to cover its automobile fleet. The carrier contends that it pays 90% of all claims within 30 days after the claims are filed. The department wants to check this ...Wisconsin state Senator Jesse P. Rude has charged that state employees in Madison are often too stoned to work. He thinks as many as 10 percent of all state workers in Madison are frequent users of marijuana and other drugs. ...Wisconsin contracts with private organizations to operate its job placement program. The state needs to evaluate the quality of the program offered by one of its vendors, the Beaver Dam Job Placement Center. One hundred ...General Kleinherbst is concerned with the VD (venereal disease) epidemic among soldiers in Europe. At a nonroutine inspection of 100 troops, 31 were found to have VD. Kleinherbst requires all troops to view the award-winning ...
Post your question