Question: Given below are seven observations collected in a regression study on two variables,x(independent variable) andy(dependent variable). Use a computer package (e.g. Minitab) to answer the
Given below are seven observations collected in a regression study on two variables,x(independent variable) andy(dependent variable). Use a computer package (e.g. Minitab) to answer the following.
xy
| 10 | 9.14 |
| 8 | 8.14 |
| 13 | 8.74 |
| 9 | 8.77 |
| 11 | 9.26 |
| 14 | 8.1 |
| 6 | 6.13 |
| 4 | 3.1 |
| 12 | 9.13 |
| 7 | 7.26 |
| 5 | 4.74 |
- Develop the least squares estimated regression equation.
- At 95% confidence, perform attest and determine whether or not the slope is significantly different from zero.
- Compute the coefficient of determination. What is your interpretation?
- Are there violations of the regression assumptions? Are there outliers? Use plots to evaluate these questions. How did you reach your conclusions?
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