Question: Please use the output given below to calculate the confidence interval for this question: Compute 99% separate confidence intervals for the IQ and SE coefficients
Please use the output given below to calculate the confidence interval for this question:
Compute 99% separate confidence intervals for the IQ and SE coefficients of the regression model (you can use the point estimate and standard errors from the regression output given). (CALCULATE MANUALLY)
Multiple linear regression results:
Dependent Variable: gpa Independent Variable(s): iq, se, sex gpa = -3.6565961 + 0.08078878 iq + 0.050483144 se + -0.82220295 sex Parameter estimates:
| Parameter | Estimate | Std. Err. | Alternative | DF | T-Stat | P-value |
|---|---|---|---|---|---|---|
| Intercept | -3.6565961 | 1.2630959 | 0 | 73 | -2.8949472 | 0.005 |
| iq | 0.08078878 | 0.013364211 | 0 | 73 | 6.0451588 | <0.0001 |
| se | 0.050483144 | 0.013961878 | 0 | 73 | 3.6157846 | 0.0005 |
| sex | -0.82220295 | 0.31354697 | 0 | 73 | -2.6222641 | 0.0106 |
Analysis of variance table for multiple regression model:
| Source | DF | SS | MS | F-stat | P-value |
|---|---|---|---|---|---|
| Model | 3 | 163.23368 | 54.411226 | 31.095712 | <0.0001 |
| Error | 73 | 127.73528 | 1.7497984 | ||
| Total | 76 | 290.96896 |
Summary of fit: Root MSE: 1.3227994 R-squared: 0.561 R-squared (adjusted): 0.543
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