Question
A psychologist is interested in the mean IQ score of a given group of children. It is known that the IQ scores of the group
A psychologist is interested in the mean IQ score of a given group of children. It is known that the IQ scores of the group have a standard deviation of12.The psychologist randomly selects50
children from this group and finds that their mean IQ score is99.Based on this sample, find a95%confidence interval for the true mean IQ score for all children of this group.
Answer the questions below and round to at least three decimal places.
What is the lower limit of the95%confidence interval?
What is the upper limit of the95%confidence interval?
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Algebra Structure And Method Book 1
Authors: Brown Dolciani, Jeffery A. Cole Sorgenfrey
1st Edition
0395771161, 978-0395771167
