q04 sa3 Statistics ♥ Name:
Age | HR |
18 | 75 |
19 | 57 |
19 | 64 |
20 | 54 |
20 | 56 |
20 | 60 |
20 | 73 |
20 | 75 |
21 | 54 |
21 | 56 |
22 | 52 |
22 | 81 |
23 | 60 |
23 | 80 |
24 | 68 |
25 | 70 |
26 | 75 |
26 | 92 |
27 | 64 |
28 | 66 |
28 | 77 |
The table provides data on the age versus heart rate for males in MS 150.
- _________ Calculate the sample size n for the data.
- _________ Calculate the slope of the linear regression (best fit line).
- _________ Calculate the y-intercept of the linear regression (best fit line).
- _________ Is the relation between age and heart rate positive, negative, or neutral?
- _________ Calculate the linear correlation coefficient r for the data.
- ______________ Is the correlation none, weak/low, moderate, strong/high, or perfect?
- ______________ Determine the coefficient of determination.
- ______________ What percent in the variation in age "explains" the variation in heart rate?
- _________ Use the slope and intercept to predict the heart rate for a 30 year old male.
- _________ Use the slope and intercept to determine the age for a male with a heart rate of 60 beats per minute
- _________ Use the slope and intercept to predict the heart rate for a 50 year old male.
- _________ Is the projected heart rate for a 50 year old male a reasonable average heart rate for human?
Generating ods file