Answered step by step
Verified Expert Solution
Question
1 Approved Answer
How can I give you the dataset homework needed? Download the data file Rateprof.csv from Canvas. The variables we will use arequality and clarityof a
How can I give you the dataset homework needed?
Download the data fileRateprof.csv from Canvas. The variables we will use arequality and clarityof a professor or their class. Both variables are ratings made by students on the scale of 1 to 5, with 1 being the worst, and 5 the best.
- Create a scatterplot withclarity on the horizontal axis andquality on the vertical axis.
- What is the fitted model? Please provide the equation and pay attention to the notation.
- Which observation(s), if any, is(are) outlier(s)? Please use -4 and 4 as the thresholds (instead of -2 and 2) for the standardized residuals because the sample size is large.Hint: you may want to use therstandard()function in R.
- Verify your results on one observation from Part c using the outlier formula presented in class. If you have no outliers, then select the first observation in the data set and verify its standardized residual using formulas presented in the lecture.
- Which observation(s), if any, is(are) exhibit high leverage? Please use
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started