Consider the following hypothesis test: H0:50Ha:>50H0:50Ha:>50

Consider the following hypothesis test: H0:50Ha:>50H0:50Ha:>50. A sample of55is used and the population standard deviation is7. Use the critical value approach to state your conclusion for each of the following sample results. Use=0.05=0.05. a. Withx=52.5x=52.5, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50? b. Withx=51x=51, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50? c. Withx=51.8x=51.8, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50?

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