Minitab

This page includes Step-by-Step instructions to use Minitab to test the parameters of the multiple regression equation for the Water/Temperature/Mowing Time example.

Example: Assume that during a three-hour period spent outside, a person recorded the outside temperature, the time they spent mowing the grass, and their water consumption.

Use Minitab to test each parameter to determine if each parameter should be dropped from the model, if the amount of the amount of water consumed is dependent on the temperature and the time they spent mowing the grass. Use the data given below.

Temperature (F)	Water Consumption (ounces)	Time mowing the grass (hours)
75	16	1.85
83	20	1.25
85	25	1.5
85	27	1.75
92	32	1.15
97	48	1.75
99	48	1.6

Preliminaries: Entering the data.

If you have already entered the water/temperature data it should be saved in file minitabdata1. If you have this file, open the file.
Otherwise enter the Temperature data in column 1 and water in column 2. Put the category names in the title row.
If you need help entering the data, see the Introduction to Minitab tutorial.

Procedure:

1. Select Stats>Regression>Regression

2. For Response type in 'Water Consumption' and for Predictors
type 'Time Mowing' 'Temperature'

3. Select OK

Save the data. Select FILE > SAVE AS. Call the data set MinitabData1. (You will use the data again in future tutorials.)

Procedure:

Select Stats>Regression>Regression
For Response type in 'Water Consumption' and for Predictors type 'Time Mowing' 'Temperature'
Select OK
Click here to check your answers.
Click here to learn how to interpret the output.

Learn the Procedure for calculating the multiple regression coefficient

Don't skip looking at the Terms.

Regression Tutorial Menu Dictionary

STATS @ MTSU