In: Statistics and Probability
The data below shows height (in inches) and pulse rates (in beats per minute) of a random sample of women. Answer parts a-c.
height (x) |
61.6 |
63.8 |
60.1 |
60.1 |
59.1 |
60.9 |
59.5 |
60.5 |
67.5 |
59.5 |
67.5 |
62.8 |
|
pulse rate (y) |
78 |
74 |
87 |
63 |
71 |
65 |
82 |
60 |
65 |
65 |
80 |
80 |
a. Find the value of the linear correlation coefficient r.
b. Find the critical values of r from the table showing the critical values for the Pearson correlation coefficient using
alpha=0.05
c. Is there sufficient evidence to conclude that there is a linear correlation between the two variables?