Question

A sample of 50 women is​ obtained, and their heights​ (in inches) and pulse rates​ (in beats per​ minute) are measured. The linear correlation coefficient is 0.245 and the equation of the regression line is y=17.6 + 0.910x,where x represents height. The mean of the 50 heights is 62.9 in and the mean of the 50 pulse rates is 72.3 beats per minute. Find the best predicted pulse rate of a woman who is 67 in tall. Use a significance level of (alpha equals) α=0.05.

50 women is obtained, and their heights (in inches) and pulse rates (in beats per minute) are measured. The linear correlation coefficient is 0.245 and the equation of the regression line is y 17.6+0.910x, where x represents height.
A sample
The mean of the 50 heights is 62.9 in and the mean of the 50 pulse rates is 72.3 beats per minute. Find the best predicted pulse rate of a woman who is 67 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 67 in tall is
beats per minute.
(Type an integer or decimal rounded to two decimal places as needed.)
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Transcribed Image Text:50 women is obtained, and their heights (in inches) and pulse rates (in beats per minute) are measured. The linear correlation coefficient is 0.245 and the equation of the regression line is y 17.6+0.910x, where x represents height. A sample The mean of the 50 heights is 62.9 in and the mean of the 50 pulse rates is 72.3 beats per minute. Find the best predicted pulse rate of a woman who is 67 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 67 in tall is beats per minute. (Type an integer or decimal rounded to two decimal places as needed.)
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