Chapter 4 Minitab Recipe Cards

1
Chapter 4Minitab Recipe Cards
2
Correlation coefficients

• Enter the data from Example 4.1 in columns C1 and
  C2 of the worksheet.

3

• Select Basic Statistics from the Stat menu and
  Correlation from the sub-menu.
• then give the column locations of both sets of
  observations in the command window.
• Click OK.

4

• Enter C1 and C2 in the command window.
• Click OK.

5

• The correlation coefficient appears in the
  session window.

6
Simple linear regression

• Put the data from Example 4.1 in two columns of
  the worksheet.

7

• Select Regression from the Stat menu then
  Regression from the Regression sub-menu.

8

• Type C2 beside Response and C1 beside Predictor.

9

• Click OK and the output that appears has the
  regression equation, the equation of the line of
  best fit, at the top.

10

• If you want a scatter diagram with the line of
  best-fit superimposed on the scatter like Figure
  4.11 follow the Stat Regression sequence but
  choose Fitted Line Plot from the Regression
  sub-menu.

11

• Type C2 beside Response (Y) and C1 beside
  Predictor (X).
• Click OK.

12

• The diagram that appears includes the regression
  equation and the value of R2 for the data.

13
Time series decomposition

• Put the data from Example 4.12 into C1 in
  chronological order.

14

• Select Time Series from the Stat menu then
  Decomposition from the sub-menu.

15

• Type C1 to the right of Variable, type 3 as the
  Seasonal length and select the Additive model
  under Model Type.
• Click OK.

16

• The output generated includes three graphs, the
  third of which is a plot of the series with the
  trend estimates.