A sample of 100 women is obtained, and their heights (in inches) and pulse rates

Question

A sample of 100 women is obtained, and their heights (in inches) and pulse rates (in beats per minute) are measured. The linear correlation coefficient is 0.201 and the equation of the regression line is y = 18.1 + 0.910x, where x represents height. The mean of the 100 heights is 63.5 in and the mean of the 100 pulse rates is 74.6 beats per minute. Find the best predicted pulse rate of a woman who is 74 in tall. Use a significance level of = 0.05 Click the icon to view the critical values of the Pearson correlation coefficient r. The best predicted pulse rate of a woman who is 74 in tall is beats per minute. (Type an integer or decimal rounded to two decimal places as needed.)

Explanation / Answer

THe regression equation is y=18.1+0.91x where x is 74 in this case

Thus, answer is y=18.1+0.91*74=85.44

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