A researcher wonders if the weight of mice varies depending on the amount of food they are given. It obtains the following results:

Mouse Weight in grams Food in grams

1 72 15

2 88 19

3 76 16

4 82 18

5 66 13

6 69 14

7 79 17

8 90 21

9 92 23

10 95 25

Make the necessary calculations to answer the following questions.

What is the regression equation?

What is the variation error?

What is the variation explained?

What is the total variation?

What is the variance explained?

Using the regression equation, calculate the weight you would expect from a mouse if it is given 22 grams of food per day.