Question: 7. Using the cpus data from Example 12.4-3 and the R commands given in (12.4.20), perform forward selection with the function step. Obtain the statistical
7. Using the cpus data from Example 12.4-3 and the R commands given in (12.4.20), perform forward selection with the function step. Obtain the statistical analysis for the final model, and report the p-value for each predictor variable and of the model utility test. (Hint. Set fit=step(lm(perf∼1, data=cpus), list(upper=∼1+syct+mmin+mmax+cach+chmin+chmax), direction=”forward”) and use summary(step(fit, direction=”
forward”)).)
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