For each additional ad, the least squares regression line predicts an increase of approximately 0.428 additional sales of the model.
Read the following description of a data set.
An automobile dealership ran a radio ad campaign to help sell its least popular model. The dealership always used the same ad but broadcast it a different number of times each week.
The sales manager tallied the number of ads broadcast each week, x, and the weekly sales of the model, y.
The least squares regression line of this data set is:
y=0.428x+7.436
Complete the following sentence:
For each additional ad, the least squares regression line predicts
additional sales of the model.
1 answer