Joe wants to attract more customers to his family's hardware store, so he is investigating whether revamping the store's advertising campaign would help.

Question

Joe wants to attract more customers to his family's hardware store, so he is investigating whether revamping the store's advertising campaign would help.

To find out, Joe kept data from the past several weeks on the number of 30-second advertisements he had purchased, x, and the number of customers who had visited his store, y.
The least squares regression line of this data set is:
y = 449.754x – 7,490.724

Complete the following sentence:

For each additional advertisement that Joe buys, the least squares regression line predicts ______________
more customers will visit the store.

Answer 1

Joe wants to attract more customers to his family's hardware store, so he is investigating whether revamping the store's advertising campaign would help.

For each additional advertisement that Joe buys, the least squares regression line predicts 449.754 more customers will visit the store.