Condence interval for the population mean: Use of the slander... V ( Espa: A psychologist ls Interested in the ma 1Q score of a given group of children, It is known that the IQ scores of the group have a standard deviating of II. The psychologist randomly selects 100 children from this group and nds that their mean IQ score is 115. Based on this sample, find a 99% 5916mm for the true mean 1Q score for all children of this group. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (if necessary, consult a MIME.) Lower limit: [I X ' 3) Q [E Upper limit: - ,1 _ ' E9 E] El