A peer review group in a hospital is interested in finding out the average morta

Question

A peer review group in a hospital is interested in finding out the average mortality rate of a surgery performed in the hospital. The peer review group the hospital's average mortality rate is the same as the average of no more than 4 deaths per 100 surgerles situation and if hypothesis testing is to be conduc the correct statement (s): by physicians currently believes that national . Given this ted, identify The·null hypothesis is that the population mean is greater B. The null hypothesis is that the population mean is exactly C. The null hypothesis is that the population mean is less than 4 D. The null hypothesis is that the population mean is less than E. The null hypothesis is that the population mean is greater than 4 deaths per 100 surgeries equal to 4 deaths per 100 surgeries deaths per 100 surgeries or equal to 4 deaths per 100 surgeries than or equal to 4 deaths per 100 surgeries

Explanation / Answer

As we are testing here that the hospital's average mortailty rate is the same as the national average of no more than 4 deaths per 100 surgeries, therefore the null and the alternate hypothesis here would be given as:

Null hypothesis is that the population mean is exactly equal to 4 deaths per 100 surgeries

and the alternate hypothesis here would be that the population mean is not equal to 4 deaths per 100 surgeries

Therefore B is the correct answer here.

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