The Mean Annual Income for Adult Women in One City $\$ 28,520$

question 42

Multiple Choice

The mean annual income for adult women in one city is $\$ 28,520$ and the standard deviation of the incomes is $\$ 5,190$ . The distribution of incomes is skewed to the right. For samples of size 30 , which of the following statements best describes the sampling distribution of the mean?

• A)Nothing can be said about the distribution of \(\bar { x }\).
• B) The distribution of \(\bar { x }\) is skewed to the right.
• C) \(\bar { x }\) is normally distributed.
• D) \(\bar { x }\) is approximately normally distributed.

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