Exhibit 12

question 69

Multiple Choice

Exhibit 12.8 The heights (in cm) for a random sample of 60 male employees of S&M Construction Company were measured.The sample mean is 166.5,the standard deviation is 12.57,the sample kurtosis is 0.12,and the sample skewness is -0.23. Refer to Exhibit 12.8.The Jarque-Bera test statistic for normality is assumed to follow a χ² distribution with the following degrees of freedom:

• A)k - 1.
• B)2
• C)k - 1
• D)(r - 1)(c - 1)