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A building manager claims that the average monthly cost for maintenance is SR 12 (51000's). A sample of 49 monthly repai
Posted: Wed May 11, 2022 2:16 pm
by answerhappygod
- A Building Manager Claims That The Average Monthly Cost For Maintenance Is Sr 12 51000 S A Sample Of 49 Monthly Repai 1 (15.95 KiB) Viewed 25 times
A building manager claims that the average monthly cost for maintenance is SR 12 (51000's). A sample of 49 monthly repairs gave a mean of 12.9 and a standard deviation of 1.7. In testing that hypothesis, if the rejection region is xbar < 11.565 or x bar> 12.435 ? 1. Find probability of type I error? 2. What is the power of the test if the average monthly cost for repairs is SR 1259