A sample o 60 women is obtained and their heights (in inches and pulse rtes (in
ID: 3289381 • Letter: A
Question
A sample o 60 women is obtained and their heights (in inches and pulse rtes (in beats per minute are measured. The linear correlation coefficient is 0.269 and he equation of the regression ine is y = 17.7 + 0.890 , where x represents height. The mean o the 60 e hts s 63.6 n and the mean of the 60 puse rates is 77.5 beats per minute Fin the est p te ise te o a woman who is 6 in tal se a significance eve of )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 69 in tall ls beats per minute. The best predited pulse rate of a woman who is 69 in tall isbeats per minute. (Type an integer or decimal rounded to two decimal places as needed.)Explanation / Answer
from the given table r = 0.254 for alpha = 0.05 and n =60;
the given linear correlation coefficient r = 0.269
which is greater than r from the table
it indicates reject null hypotheses
the pulse rate of woman who is 69 in tall is 17.7+0.89*69 = 79.11