Question: I know how to run an excel analysis of regression when there are 2 variables, but how do I run the following with 3? I am so confused and cannot find anything in the textbook to explain...

Criterion:Use Excel to complete an analysis of regression.

Data: Use the data from the table below.

Instruction: Complete the following steps.

1. Open Excel and work in a new sheet.
2. Enter the data from the table below. Cell A1 will be X. Cell B1 will be Y. Then, enter the data below

Stress Levels
High	Moderate	Low
10	9	9
7	4	4
8	7	6
12	6	5
6	8	7

1. Cell A1 will be X. Cell B1 will be Y. Then, enter the data below.
2. Go to the tool bar, click Data Analysis, and select Regression.
3. Put a check next to Labelsand Confidence Level.
4. In Input Y Range: $B$1:$B$11, In Input X Range: $A$1:$A$11
5. Select Ok. Your data will appear in a new Sheet to the left.
6. Copy and paste the output to this document.