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Generate Descriptive Statistics

Minitab PowerPoint Chapter 10 Forum 11 April 3rd IET 603 Dr. Zargari Spring 2014 Minitab Session Commands and Execs Overview. Generate Descriptive Statistics. 1 Choose Stat > Basic Statistics > Display Descriptive Statistics . 2 In Variables , enter Weight . Click OK.

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Generate Descriptive Statistics

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  1. Minitab PowerPoint Chapter 10Forum 11 April 3rdIET 603Dr. ZargariSpring 2014Minitab Session Commands and Execs Overview

  2. Generate Descriptive Statistics • 1 Choose Stat >Basic Statistics > Display Descriptive Statistics. • 2 In Variables, enter Weight. Click OK.

  3. Recode the Data • Choose Manip>Code > Numeric to Numeric. • 2 In Code data from columns, enter Weight. • 3 In Into columns, enter Weight. This will replace the old values in Weight with the new, coded values. • 4 In Original values, type -99. This is the value you want to change. • 5 In New, type *. This is the missing value symbol. Click OK.

  4. Tally the Data • Choose Stat >Tables > Tally. • 2 In Variables, enter Age. Click OK. Summary Statistics for Discrete Variables Age Count 3 144 4 147 N= 291 The output shows that you have 144 three-year-old trees, and 147 four-year-old trees.

  5. Split the Data by Age • Choose Manip>Split Worksheet. • 2 In By variables, enter Age. Click OK. MINITAB will split the POPLAR4 worksheet using the values of Age. Since there are two unique values in the age column (3 and 4), MINITAB will create two new worksheets. The worksheet that contains the data for the three-year-old trees will be named POPLAR4.MTW(Age = 3); the worksheet that contains the data for the four-year-old trees will be named POPLAR4.MTW(Age = 4).

  6. Split the Data by Age Continued • Rename the worksheet that contains the four-year-old trees’ data • Choose Window >Manage Worksheets. • 2 Click on POPLAR4.MTW(Age = 4). • 3 Click Rename. • 4 Type 4YROLDS.MTW. • 5 Click OK and then click Done.

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