MGSC 291- Hendrix Exam 3 questions with
verified solutions already passed
You have a model with 4 predictors - A,B,C, and D. If the VIF for a predictor A is a 10, it means that
a. the r-squared running the regression of A ~B+C+D is 90%
b. there is strong evidence for high leverage
c. 10% of the variance inflation is explained by this model - correct answer ✔✔a
In R, write.csv(submission,"upload",row. Names=FALSE)
a. writes the R object called "upload" to your computer as a csv and calls it "submission"
b. writes the R object called "submission" to your computer as a csv called "upload" - correct answer
✔✔b
Which R function would read in a .txt file?
a. read.csv()
b. read.table() - correct answer ✔✔b
Dim(x) returns [1]5,8 - correct answer ✔✔5 rows, 8 columns
college$tution - correct answer ✔✔data set name $ column name
large p-value means - correct answer ✔✔lack of evidence for the null
verified solutions already passed
You have a model with 4 predictors - A,B,C, and D. If the VIF for a predictor A is a 10, it means that
a. the r-squared running the regression of A ~B+C+D is 90%
b. there is strong evidence for high leverage
c. 10% of the variance inflation is explained by this model - correct answer ✔✔a
In R, write.csv(submission,"upload",row. Names=FALSE)
a. writes the R object called "upload" to your computer as a csv and calls it "submission"
b. writes the R object called "submission" to your computer as a csv called "upload" - correct answer
✔✔b
Which R function would read in a .txt file?
a. read.csv()
b. read.table() - correct answer ✔✔b
Dim(x) returns [1]5,8 - correct answer ✔✔5 rows, 8 columns
college$tution - correct answer ✔✔data set name $ column name
large p-value means - correct answer ✔✔lack of evidence for the null
