Author Question: A manufacturing company is interested in predicting the number of defects that will be produced each ... (Read 99 times)

moongchi · **on:** Jun 24, 2018

A manufacturing company is interested in predicting the number of defects that will be produced each hour on the assembly line. The managers believe that there is a relationship between the defect rate and the production rate per hour.

The managers believe that they can use production rate to predict the number of defects. The following data were collected for 10 randomly selected hours.

Defects Production Rate Per Hour
20 400
30 450
10 350
20 375
30 400
25 400
30 450
20 300
10 300
40 300

Given these sample data, the simple linear regression model for predicting the number of defects is approximately = 5.67 + 0.048x.
Indicate whether the statement is true or false

Question 2

Standard stepwise regression combines attributes of both forward selection and backward elimination.

Indicate whether the statement is true or false