Answer:
The estimated rating is 8.2
Step-by-step explanation:
We are given the following information in the question:
The multiple regression line to determine the relationship between the satisfaction rating for a new candy bar and the amount of chocolate used and the amount of caramel used is given by:
[tex]y=7.6+2.1x_1-0.9x_2[/tex]
where y is the satisfaction rating(dependent variable),
[tex]x_1: \text{ is the amount of chocolate used(independent variable)}\\x_2: \text{ is the amount of caramel used(independent variable)}[/tex]
We have to find the mean estimated rating when the amount of chocolate used is 0.35 ounce, and the amount of caramel used is 0.15 ounce.
Putting the values, we get:
[tex]y=7.6+2.1(0.35)-0.9(0.15) = 8.2[/tex]
Thus, the estimated rating is 8.2
