How do I set the problems below in R? Use the rnorm function in R to...

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How do I set the problems below in R? Use the rnorm function in R to generate 100 samples of X ~N(-1.0,2.5) (for help use ?rnorm ) and for each draw, simulate Yǐ from the simple linear regression model = 2.5+2.0x,+티, where e, N N(0,3 ).

(ii) Split the sample into 2 subsets of size 25 and 75. For each subset, run the regression of Y on X. Add each fitted regression line (use color) to your plot from (i). Why are they not the same?

math Statistics-And-Probability

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Answer 1

Answer #1

i)

Console Terminal > set.seed (5) #generate 100 random samples from normal distribution with mean -1 and sd 2.5 >xi rnorm(100, mean--1,sd-2. 5) > yi-2, 5+2.0*xi mnr lot abline(yonx)

Scatter plot -6 -4 -2 0 4 Xi

ii)

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Answer 2

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How do I set the problems below in R?

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