Question
The distribution of IQ scores for 12-year-oldsnormally distributed with a mean of 100 and a standard deviation of 16. (a) Jessica had a score of
The distribution of IQ scores for 12-year-oldsnormally distributed with a mean of 100 and a standard deviation of 16. (a) Jessica had a score of 132. Compute Jessica's standardized score. (b) Suppose Jessica has an older brother, Mike, who is 20 years old and has an IQ score of 144. It wouldn't make sense to directly compare Mike's score of 144 to Jessica's score of 132. The two scores come from different distributions due to the age difference. Assume that the distribution of IQ scores for 20-year-olds is normal with a mean of 120 and a standard deviation of 20. Compute Mike's standardized score.(c) Relative to their respective age group, who had the higher IQ scoreJessica or Mike? A researcher has found that there is a co-relation between the weight tendencies of father and son. He is now interested in developing regression equation on two variables from the given data: Weight of father (in Kg)69 63 66 64 67 64 70 66 68 67 65 71 Weight of Son (in Kg)70 65 68 65 69 66 68 65 71 67 64 72 Develop Regression equation of Y on X
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