# Corrections to the sixth edition

Despite our best efforts to produce error-free books various types of

mistakes remain. On this page we will announce all such errors and their

corrections. If you discover a new one please e-mail me at gkeller@wlu.ca

To determine the printing turn to page iv where the following appears:

Printed in the United States of America" followed by a series of numbers.

The first printing is identified by: 1 2 3 4 5 6 7 06 05 04 03 02

The second printing will display 2 3 4 5 6 7 06 05 04 03 02

The Third printing will display 3 4 5 6 7 06 05 04 03 02

# FIRST PRINTING

**Page 33:** Change "but not" to "and" in the footnote to Table 2.1

**Page 72, 4th paragraph, last sentence:** Delete "...and pie charts."

**Page 74,Exercise 2.98:** Change the three sentences after the table to: "A statistics practitioner recorded the cause of crashes among small commercial aircraft. The data are stored in file Xr02-98. Draw a graph that depicts these data."

**Page 75, Exercise 2.114:** Change the fourth sentence to "The responses are recorded 1, 2, 3, 4, 5, respectively, and stored in file Xr02-114."

**Page 89, first paragraph, last two lines:** Change "1990" to "1995" and "1980" to "1985.""

**Page 104, Excel Commands:** Change "MEAN" to "AVERAGE."

**Page 129, 3rd line from bottom:** The sentence should be "The slope coefficient tells us that, on average, for each additional 100 square feet the price increases by $7.03 thousand".

**Page 201, Exercise 7.58, line 9:** Change "standard deviations" to "variances."

**Page 210, 3rd line:** Delete ! after n in the denominator in the combinatorial formula. That is, it should be x!(n-x)!

**Page 275, Applet 9, Applet Exercises 9.1 and 9.2:** Change "Figure 9.1" to "Figure 9.2."

**Page 365, Exercise 12.40, 6th sentence:** Change "She would like a 90% confidence interval estimate..." to " She would like an estimate ..."

**Page 419, Excel Commands, first 2 lines:** Change "A21" to "A26" and "B21" to "B26."

**Page 430, 3rd line:** The formula for UCL is incorrect. It should be the ratio of the two sample variances multiplied by F_{alpha/2,nu1-nu2}

**Page 441, lines 10 and 11:** p_{1} is the death rate with streptokinase and p_{2} is the death rate with t-PA.

**Page 477, 7 lines from bottom:** The denominator in the formula for MSE should be n - k (not n - 1).

**Page 554, Exercise 16.45:** There are 9 sports categories listed in the survey (not 6). The additional categories and their codes are 6 = golf, 7 = auto racing, 8 = tennis, and 9 = other.

**Page 598, Exercise 17.92** Change "three newspaper pages" to" four newspaper pages"

**Page 763, 9th line:** Change ".3" to "3"

### Appendix C

**Exercise 2.24:** Delete "7 to 9 **c**" and delete "**d**."

**Exercise 14.2d:** Change UCL = $104.55

**Exercise 15.74:** Correct answer is F = 7.72, p-value = .0070; yes

# SECOND PRINTING

**Page 74,Exercise 2.98:** Change the three sentences after the table to: "A statistics practitioner recorded the cause of crashes among small commercial aircraft. The data are stored in file Xr02-98. Draw a graph that depicts these data."

**Page 75, Exercise 2.114:** Change the fourth sentence to "The responses are recorded 1, 2, 3, 4, 5, respectively, and stored in file Xr02-114."

**Page 129, 3rd line from bottom:** The sentence should be "The slope coefficient tells us that, on average, for each additional 100 square feet the price increases by $7.03 thousand".

**Page 201, Exercise 7.58, line 9:** Change "standard deviations" to "variances."

**Page 210, 3rd line:** Delete ! after n in the denominator in the combinatorial formula. That is, it should be x!(n-x)!

**Page 419, Excel Commands, first 2 lines:** Change "A21" to "A26" and "B21" to "B26."

**Page 430, 3rd line:** The formula for UCL is incorrect. It should be the ratio of the two sample variances multiplied by F-alpha/2, nu2, nu1.

**Page 441, lines 10 and 11:** p-1 is the death rate with streptokinase and p-2 is the death rate with t-PA.

**Page 477, 7 lines from bottom:** The denominator in the formula for MSE should be n - k (not n - 1).

**Page 554, Exercise 16.45:** There are 9 sports categories listed in the survey (not 6). The additional categories and their codes are 6 = golf, 7 = auto racing, 8 = tennis, and 9 = other.

**Page 598, Exercise 17.92** Change "three newspaper pages" to" four newspaper pages"

**Page 763, 9th line:** Change ".3" to "3"

### Appendix C

**Exercise 14.2d:** Change UCL = $104.55

**Exercise 15.74:** Correct answer is F = 7.72, p-value = .0070; yes

# THIRD PRINTING

**Page 74,Exercise 2.98:** Change the three sentences after the table to: "A statistics practitioner recorded the cause of crashes among small commercial aircraft. The data are stored in file Xr02-98. Draw a graph that depicts these data."

**Page 75, Exercise 2.114:** Change the fourth sentence to "The responses are recorded 1, 2, 3, 4, 5, respectively, and stored in file Xr02-114."

**Page 210, 3rd line:** Delete ! after n in the denominator in the combinatorial formula. That is, it should be x!(n-x)!

**Page 441, lines 10 and 11:** p-1 is the death rate with streptokinase and p-2 is the death rate with t-PA.

**Page 598, Exercise 17.92** Change "three newspaper pages" to" four newspaper pages"

# STUDENT SOLUTIONS MANUAL

**Exercise 2.24:** Delete part part **a**, change "**b **" to "**a**", and combine parts **c** and **d** for the answer to part. **d**

**Exercise 12.46:** Change "p-value = .1001" to "p-value = .1001 (Excel)."

**Exercise 13.6:** The degrees of freedom should be represented by the Greek letter *Nu* and not by (n - 1)./>

**Exercise 14.2d:** Change UCL = $104.55

**Exercise 15.36:** The solution shown is the solution to Exercise 15.35. The answer in Appendix C in the textbook is correct

**Exercise 15.74:** The ANOVA table is incorrect. The correct answer is F = 7.72, p-value = .0070; yes

# CD APPENDIXES

**CD Appendix 4.1:** Change the frequency of the 90 to 105 class from 24 to 28 in Example CD4.1 and in the solution. The answers for the mean and variance are correct with this correction

**Acknowledgements**

The authors are grateful to Kevin W. Li, University of Waterloo, Barry van de Leur, University of Amsterdam, and Trent Tucker, Robert Deschamps, Caleb Boyd and Chuanying Wang, Wilfrid Laurier University for notifying us of these errors.