Provide an appropriate response.
Your friend is saving to buy a house and she asks you to investigate the relationship between house size and selling price and to develop
a model to predict the price from size. Data has been obtained on the house size (in square feet) and the selling price (in dollars) for a
sample of 100 homes in your town. An equation describing the relationship was found to be:
price = 9161.159 + 77 x size
What is the estimated change in the average selling price of a house for an increase in house size of 10 square feet?
$7700
$77
$770
$9931.16