Use Minitab, R, or your preferred software for this question. An exercise physiologist used skinfold measurements to estimate...
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Use Minitab, R, or your preferred software forthis question.
An exercise physiologist used skinfold measurements toestimate the total body fat, Y, expressed as a percentageof body weight, X1, for 19 participants in aphysical fitness program. Body fat percentage and body weight areshown in the table below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Weight (kg) 89 88 66 59 93 73 82 77 100 67 57 68 69 59 62 59 56 66 72 Body Fat (%) 28 27 24 23 29 25 29 25 30 23 29 32 35 31 29 26 28 23 23
Note that participants 1-10 are male and 11-19 arefemale. Define a variable X2 which is 1 formales and 0 for females, and fit the modelY=?0+?1X1+?2X2+e.
What is the estimated value of the regression coefficient forvariable Weight? [2 pt(s)]
Tries 0/3
What is the estimated value of the intercept? [2pt(s)]
Tries 0/3
What is your computed value of SSE? [2 pt(s)]
Tries 0/3
What is your computed value of MSE? [1 pt(s)]
Tries 0/3
What is the standard error of the estimate of?1? [2 pt(s)]
Tries 0/3
Use Minitab, R, or your preferred software forthis question.
An exercise physiologist used skinfold measurements toestimate the total body fat, Y, expressed as a percentageof body weight, X1, for 19 participants in aphysical fitness program. Body fat percentage and body weight areshown in the table below.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | |
| Weight (kg) | 89 | 88 | 66 | 59 | 93 | 73 | 82 | 77 | 100 | 67 | 57 | 68 | 69 | 59 | 62 | 59 | 56 | 66 | 72 |
| Body Fat (%) | 28 | 27 | 24 | 23 | 29 | 25 | 29 | 25 | 30 | 23 | 29 | 32 | 35 | 31 | 29 | 26 | 28 | 23 | 23 |
Note that participants 1-10 are male and 11-19 arefemale. Define a variable X2 which is 1 formales and 0 for females, and fit the modelY=?0+?1X1+?2X2+e.
What is the estimated value of the regression coefficient forvariable Weight? [2 pt(s)]
| Tries 0/3 |
What is the estimated value of the intercept? [2pt(s)]
| Tries 0/3 |
What is your computed value of SSE? [2 pt(s)]
| Tries 0/3 |
What is your computed value of MSE? [1 pt(s)]
| Tries 0/3 |
What is the standard error of the estimate of?1? [2 pt(s)]
| Tries 0/3 |
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