In the following scenario for a hypothesis test for a population mean, decide wh

Question

In the following scenario for a hypothesis test for a population mean, decide whether the z-test is an appropriate method for conducting the hypothesis test. Assume that the population standard deviation is known Preliminary data analyses reveal that the sample data contain no outliers but that the distribution of the variable under consideration is probably highly skewed. The sample size is 24. Choose the correct answer below. O A. B. ° C. 0 D. The z-test is not an appropriate method, because the sample size is too small to be useful. The z-test is not an appropriate method, because the sample size is less than 30 and the data are highly skewed. The z-test is an appropriate method, because the sample size is sufficiently large that the skewness of the variable does not matter. The z-test is an appropriate method, because the sample contains no outliers.

Explanation / Answer

z - test is not appropriate because sample size is less than 30 and population is highly skewed.

Option B is correct.

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