The Distribution of the Amount Spent for Childcare in a Midwestern

question 131

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?
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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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Relaxed

A state or condition of being free from tension, stress, or anxiety.

Democratic Groups

Groups that operate under the principle of democracy, where decisions are made collectively and each member has an equal vote or say.

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Yielding positive results or benefits; effective in achieving intended outcomes.

Aggression

A range of behaviors that can result in both physical and psychological harm to oneself, others, or objects in the environment.