The weekly salaries (in dollars) of randomly selected employees of a company are summarized in the boxplot below. Based on the boxplot, is a large sample necessary to conduct a hypothesis test about the mean salary? If so, why?
A) Yes; data do not appear to be normally distributed but skewed left.
B) Yes; data do not appear to be normally distributed but skewed right.
C) No; data appear to be normally distributed.
D) Yes; data contain outliers.

Question

The weekly salaries (in dollars) of randomly selected employees of a company are summarized in the boxplot below. Based on the boxplot, is a large sample necessary to conduct a hypothesis test about the mean salary? If so, why? 
A) Yes; data do not appear to be normally distributed but skewed left. 
B) Yes; data do not appear to be normally distributed but skewed right. 
C) No; data appear to be normally distributed. 
D) Yes; data contain outliers.

Quizplus · Accepted Answer

The Answer of The weekly salaries (in dollars) of randomly selected employees of a company are summarized in the boxplot below. Based on the boxplot, is a large sample necessary to conduct a hypothesis test about the mean salary? If so, why? 
A) Yes; data do not appear to be normally distributed but skewed left. 
B) Yes; data do not appear to be normally distributed but skewed right. 
C) No; data appear to be normally distributed. 
D) Yes; data contain outliers.

The Weekly Salaries (In Dollars) of Randomly Selected Employees of a Company