The Heights (In Cm) for a Random Sample of 60

question 59

Multiple Choice

The heights (in cm) for a random sample of 60 males were measured. The sample mean is 166.55, the standard deviation is 12.57, the sample kurtosis is 0.12, and the sample skewness is −0.23. The following table shows the heights subdivided into non-overlapping intervals. Suppose the value of the test statistic is 7.71. Using the critical value approach, decision and conclusion are ________.

• A) reject the null hypothesis; conclude that heights are normally distributed
• B) reject the null hypothesis; conclude that heights are not normally distributed
• C) do not reject the null hypothesis; conclude that heights are normally distributed
• D) do not reject the null hypothesis; conclude that heights are not normally distributed

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