Question
Please solve the following question using the multiple linear regression output given: Compute 99% separate confidence intervals for the IQ and SE coefficients of the
Please solve the following question using the multiple linear regression output given:
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). (CALCULATE MANUALLY)
Output from multiple linear regression test: 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
Please try to have this done as soon as possible please, I really appreciate it.
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