From 0bdd912df218cce553df8cd30236d98fe096de1e Mon Sep 17 00:00:00 2001 From: Irene Date: Mon, 5 Oct 2015 09:25:28 -0700 Subject: [PATCH] Update Exercise2.Rmd --- R_Exercises/Exercise2/Exercise2.Rmd | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/R_Exercises/Exercise2/Exercise2.Rmd b/R_Exercises/Exercise2/Exercise2.Rmd index 4d0e2e6..1e8e1e7 100644 --- a/R_Exercises/Exercise2/Exercise2.Rmd +++ b/R_Exercises/Exercise2/Exercise2.Rmd @@ -111,7 +111,7 @@ iv) predict(lm.fit, data.frame(horsepower=98), interval="confidence") predict(lm.fit, data.frame(horsepower=98), interval="prediction") ``` -The predicted mpg is 23.47. The lower and upper 95% prediction interval is 14.8 to 34.12. The 95% confidence interval is 23.97-24.96, much tighter. +The predicted mpg is 24.47. The lower and upper 95% prediction interval is 14.8 to 34.12. The 95% confidence interval is 23.97-24.96, much tighter. #### Part b) ```{r fig.width=7, fig.height=5}