# Introduction - How the Solutions Were Produced All answers...

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How the Solutions Were Produced All answers have been-double-checked for accuracy. However, we cannot be absolutely certain that there are no errors. When and if we discover mistakes we will post corrected answers on our web page. (See page 8 in the textbook for the address.) If you find any errors, please email the author (address on web page). We will be happy to acknowledge you with the discovery. Chapter 2 Excel was employed to draw the histograms, bar charts, pie charts, line charts, and scatter diagrams. Chapter 4 Excel was used to draw box plots and compute the descriptive statistics for exercises with data sets. Chapters 6 through 9 Probabilities were computed manually. Probability trees were used where possible. Chapters 10 through 19 and 21 Calculations for exercises that provided statistics either in the exercise itself or in Appendix A were completed manually. The solutions to exercises requiring the use of a computer were produced using Excel. Confidence interval estimates used critical values obtained from the tables in Appendix B. In

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