1. Guide to Using Minitab For Basic Statistical Applications To Accompany Business Statistics: A Decision Making Approach, 7th Ed. Chapter 7: Estimating Population Values By Groebner, Shannon, Fry, & Smith Prentice-Hall Publishing Company Copyright, 2005

2. Chapter 7 Minitab Examples  Histogram Histogram Nagel Beverage Company  Interval Estimation Interval Estimation Nagel Beverage Company  Interval Estimation Interval Estimation Heritage Software

3. Histogram Construction Nagel Beverage Company Issue: The manager is interested in viewing the graphical characteristics of the sample fill amounts in soft-drink cans. Objective: Use Minitab to help construct a histogram of the sample fill volumes. Data file is Nagel- Beveragea.mtw

4. Open File Nagel-Beveragea.mtw File contains sample data for 100 cans. Histogram – Nagel Beverage

5. See The Capital Credit Union tutorial in Chapter 2 for the specific steps to construct the histogram Histogram – Nagel Beverage

6. Interval Estimation Nagel Beverage Company Issue: The manager is interested in estimating the mean fill amount in soft-drink cans. Ideal average is 12 ounces Objective: Use Minitab to help construct a confidence interval estimate for population mean fill volume. Data file is Nagel-Beverage.mtw

7. Open File Nagel-Beverage.mtw File contains sample data for 100 cans. Interval Estimation – Nagel Beverage

8. Use Stat – Basic Statistics – 1 Sample t Interval Estimation – Nagel Beverage

9. Select variable for analysis – Choose Options Interval Estimation – Nagel Beverage

10. Specify Confidence level Interval Estimation – Nagel Beverage

11. 95 % Confidence Interval Interval Estimation – Nagel Beverage

12. Interval Estimation Heritage Software Issue: The company has service representatives who answer calls from customers. The managers are interested in estimating the mean call time Objective: Use Minitab to help construct a confidence interval estimate for population mean call time. Data file is Heritage.mtw

13. Open File Heritage.mtw File contains sample data for 25 calls Interval Estimation – Heritage Software

14. Use Stat – Basic Statistics – 1 Sample t Interval Estimation – Heritage Software

15. Select variable for analysis – Click on Options Interval Estimation – Heritage Software

16. Enter confidence level Interval Estimation – Heritage Software

17. 95 % Confidence Interval Interval Estimation – Heritage Software