Question 5 Which hypothesis test should be used to determine

Question 5 Which hypothesis test should be used to determine whether the mean Full Scale IQ score of the Smart County residents is higher than the national average? A. ztest for the population mean B. ttest for the population mean C. ztest for the population proportion D. ttest for the population proportion

Solution

A. z-test for the population mean
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the population mean is being assessed and the population
standard deviation is known, the appropriate hypothesis test would be the z-
test for the population mean.