mework: Assignment #10 Chapter 10 re: 0 of 1 pt 10of13 (9 complete) HW Score: 55

Question

mework: Assignment #10 Chapter 10 re: 0 of 1 pt 10of13 (9 complete) HW Score: 55.77%, 7.25 of 13 pts .3.7 E Question Help A sample of 40 women is obtained, and their heights (in inches) and pulse rates (n beats per minute) are measured. The linear corelation coeficient equation of the regression line is y8+0xwhere x represents height. The mean of the 40 heights is 62.9 in and the mean of the 40 pulse rates is per minute. Find the best predicted pulse rate of a woman who is 72 in tall. Use a significance level of = 0.01. Click the icon to view the critical values of the Pearson correlation coefficient r. The best predicted pulse rate of a woman who is 72 in tall is beats per minute. (Type an integer or decimal rounded to two decimal places as needed.) ch

Explanation / Answer

Critical value for n = 40 and 0.01 level of significance = 0.402

Since the calculated correlation coefficient is 0.237 which is less than the critical value, the regression equation will not be significant.

Hence,

Best predicted value = Sample mean = 75.2 beats per minute

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