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The Distribution of the Amount Spent for Childcare in a Midwestern

Question 134

Short Answer

The distribution of the amount spent for childcare in a Midwestern city has a mean of $675 and a standard deviation of $80. A random sample of 64 families paying for childcare is selected.
Is the sampling distribution of the sample mean approximately normal?
______________
What is the mean?
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What is the standard deviation?
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Find the probability that the sample mean is between $645 and $700.
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Find the probability that the sample mean is less than $700.
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Yes; 675; ...

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