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A psychologist is interested in the mean IQ score of a given group of children. It...

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Basic Math

A psychologist is interested in the mean IQ score of a givengroup of children. It is known that the IQ scores of the group havea standard deviation of 11

. The psychologist randomly selects 150 children from this groupand finds that their mean IQ score is 99 . Based on this sample,find a 95% confidence interval for the true mean IQ score for allchildren of this group. Then complete the table below.

What is the lower limit of the 95% confidence interval?
What is the upper limit of the 95% confidence interval?

Answer & Explanation Solved by verified expert
3.9 Ratings (701 Votes)
Solution Given thatPoint estimate sample mean 99Population    See Answer
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