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Problems 1 Last year, Normal, Illinois, had all c...




Problems 1 Last year, Normal, Illinois, had all car maintenance on rhe city's automobiles done by the city maintenance pool. The cost was $364 per car. This year, the city fathers fired all the workers in the maintenance pool and are using Jack's Crash Shop ro perform the maintenance. They would like to know, without a complete audit, whether Jack is saving them money. A random sample of 36 cars showed a mean repair cost of $330, with a standard deviation of $120. What can you tell the city fathers? I must have the details of the answer included. Thank you in advance,I actually have several problems to complete. I am on a tight timeline. I need to know if you are available to assist me after you complete this problem? Thank you so much in advance.,I am still waiting for assistance


Paper#11511 | Written in 18-Jul-2015

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