Question

Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of measurements yield x = 103.15, y = 105.25, r = 0.854, P-value = 0.000, and y? = -8.19 + 1.1x, where x represents the IQ score of the husband. Find the best predicted value of y? given that the husband has an IQ of 92? Use a significance level of 0.05. Click the icon to view the critical values of the Pearson correlation coefficient r. The best predicted value of y? is . (Round to two decimal places as needed.)

          Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of measurements yield x = 103.15, y = 105.25, r = 0.854, P-value = 0.000, and y? = -8.19 + 1.1x, where x represents the IQ score of the husband. Find the best predicted value of y? given that the husband has an IQ of 92? Use a significance level of 0.05.

Click the icon to view the critical values of the Pearson correlation coefficient r.

The best predicted value of y? is .
(Round to two decimal places as needed.)

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Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of measurements yield x = 103.15, y = 105.25, r = 0.854, P-value = 0.000, and y? = -8.19 + 1.1x, where x represents the IQ score of the husband. Find the best predicted value of y? given that the husband has an IQ of 92? Use a significance level of 0.05.

Click the icon to view the critical values of the Pearson correlation coefficient r.

The best predicted value of y? is .
(Round to two decimal places as needed.)

Added by Nicole L.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Katy Gimbel

04/19/2022

Step 1

However, we don't have the values for σy and σx directly. We know that σ = 8.19 + 1.σx, which means σx = σ - 8.19. But we don't have the value for σ. We can't proceed without this information. Show more…

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Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of measurements yield x = 103.15, y = 105.25, r = 0.854, P-value = 0.000, and ŷ = -8.19 + 1.1x, where x represents the IQ score of the husband. Find the best predicted value of ŷ given that the husband has an IQ of 92? Use a significance level of 0.05. The best predicted value of ŷ is (Round to two decimal places as needed.)

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