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.The Jarque-Bera test statistic for normality is assumed to follow a distribution with the following degrees of freedom _____.
A) k
B) 2
C) k − 1
D) (r − 1)(c − 1)

Question

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.The Jarque-Bera test statistic for normality is assumed to follow a  distribution with the following degrees of freedom _____.
A) k 
B) 2 
C) k − 1 
D) (r − 1)(c − 1)

Quizplus · Accepted Answer

The Jarque-Bera test statistic for normality follows a chi-square distribution with 2 degrees of freedom, regardless of the sample size. Therefore, the answer is B.

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