Run the R packages mentioned below to generate the results:

library (alr4)

library (car)

For this exercise, perform the calculations manually.

a). Use data from the United Nations (UN11). In the lifeExpF~group setting, check all the results in Table 5.1 and Table 5.2.

b). Repeat the previous exercise for the lifeExpF~group+log(ppgdp) model. Compare these results with those in Table 5.2.

> head(UN11)
region group fertility ppgdp lifeExpF pctUrban
Afghanistan Asia other 5.968 499.0 49.49 23
Albania Europe other 1.525 3677.2 80.40 53
Algeria Africa Africa 2.142 4473.0 75.00 67
Angola Africa Africa 5.135 4321.9 53.17 59
Anguilla Caribbean other 2.000 13750.1 81.10 100
Argentina Latin Amer other 2.172 9162.1 79.89 93
> dim(UN11)
[1] 199 6
 

Transcribed Image Text:

Table 5.1 Regression Summary for Model (5.4) Estimate 82.4465 -7.1197 -22.6742 (Intercept), Bo other, B₂ africa, 3 ô= 6.2801 with 196 df, R² = 0.6191. oecd other oecd africa other africa Std. Error Table 5.2 Pairwise Comparisons of Level Means for Group Comparison Estimate SE 7.12 22.67 15.55 1.1279 1.2709 1.4200 1.27 1.42 1.04 t-Value 73.09 -5.60 -15.97 t-Value 5.60 15.97 14.92 Pr(>ltl) 0.0000 0.0000 0.0000 p-Value 0.000 0.000 0.000 Table 5.1 Regression Summary for Model (5.4) Estimate 82.4465 -7.1197 -22.6742 (Intercept), Bo other, B₂ africa, 3 ô= 6.2801 with 196 df, R² = 0.6191. oecd other oecd africa other africa Std. Error Table 5.2 Pairwise Comparisons of Level Means for Group Comparison Estimate SE 7.12 22.67 15.55 1.1279 1.2709 1.4200 1.27 1.42 1.04 t-Value 73.09 -5.60 -15.97 t-Value 5.60 15.97 14.92 Pr(>ltl) 0.0000 0.0000 0.0000 p-Value 0.000 0.000 0.000

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Solution 24 number of subnets 4 number of bits for subnet log24 2 so new subnet mask is 26 subnet ma... View the full answer