The manufacturer of packaging materials examines the relationship between x = strength of the fiber and y = temperature during the production process. The obtained data are given in the table. The accompanying fitted line plot is from Minitab. If the selected outlier (1800, 273) is deleted from the data set, how would it affect the R-squared value?
A) The changes in the R-squared value would be insignificant.
B) The R-squared value would increase.
C) The R-squared value can either increase or decrease, depending on other factors.
D) The R-squared value would decrease.
E) Removing outliers does not affect the R-squared value.

Question

The manufacturer of packaging materials examines the relationship between x = strength of the fiber and y = temperature during the production process. The obtained data are given in the table. ​  ​ The accompanying fitted line plot is from Minitab. ​  ​ If the selected outlier (1800, 273) is deleted from the data set, how would it affect the R-squared value? ​
A) The changes in the R-squared value would be insignificant. 
B) The R-squared value would increase. 
C) The R-squared value can either increase or decrease, depending on other factors. 
D) The R-squared value would decrease. 
E) Removing outliers does not affect the R-squared value.

Quizplus · Accepted Answer

The Answer of The manufacturer of packaging materials examines the relationship between x = strength of the fiber and y = temperature during the production process. The obtained data are given in the table. ​  ​ The accompanying fitted line plot is from Minitab. ​  ​ If the selected outlier (1800, 273) is deleted from the data set, how would it affect the R-squared value? ​
A) The changes in the R-squared value would be insignificant. 
B) The R-squared value would increase. 
C) The R-squared value can either increase or decrease, depending on other factors. 
D) The R-squared value would decrease. 
E) Removing outliers does not affect the R-squared value.

The Manufacturer of Packaging Materials Examines the Relationship Between X