Identify the Distribution of the Sample Mean $\bar { x }$

question 61

Multiple Choice

Identify the distribution of the sample mean. In particular, state whether the distribution of $\bar { x }$ is normal or approximately normal and give its mean and standard deviation.
-The mean annual income for adult women in one city is $28,520 and the standard deviation of the incomes is $5700. The distribution of incomes is skewed to the right. Determine the sampling
Distribution of the mean for samples of size 132.

• A)Approximately normal, mean = $28,520, standard deviation = $5700
• B)Normal, mean = $28,520, standard deviation = $43
• C)Approximately normal, mean = $28,520, standard deviation = $496
• D)Normal, mean = $28,520, standard deviation = $496

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