7. Suppose IQ scores were obtained from randomly selected couples. For 20 such pairs of people, the linear correlation coefficient is 0.877 and the equation of the regression line is ŷ = -4.51+ 1.06x, where x represents IQ score of the husband. Also, the 20 x values have a mean of 98 and the 20 y values have a mean of 99.1. What is the best predicted IQ of the wife, given that the husband has an IQ of 94? Use a significance level of 0.05. The best predicted IQ of the wife is

7. Suppose IQ scores were obtained from randomly selected couples. For 20 such pairs of people, the linear correlation coefficient is 0.877 and the equation of the regression line is ŷ = -4.51+ 1.06x, where x represents IQ score of the husband. Also, the 20 x values have a mean of 98 and the 20 y values have a mean of 99.1. What is the best predicted IQ of the wife, given that the husband has an IQ of 94? Use a significance level of 0.05. The best predicted IQ of the wife is

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 2AGP

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