ERRATA
The following comments are related to problems found at the end of various chapters.
General comment: In terms of the application problems, your calculated answer, on occasion, may differ from the published answer simply as a result of rounding. Moreover, differences between a calculated answer and a published answer may be more likely as you work your way through the text because the number of calculations involved in the various problems generally increases along the way.
Corrections: See specific corrections on a chapter-by-chapter basis.
Chapter 1:
General Thought Questions
# 5 The correct answer is: Interval or Interval/ratio
# 7 The correct answer is: Ratio
Chapter 7:
General Thought Questions
# 7 The correct answer is: Fail to reject
Application Questions/Problems: Hypothesis Involving a Single Sample Mean with Unknown
# 5 The correct answer is: Fail to reject
# 6 The correct answer is: Fail to reject
Chapter 8
General Thought Questions
# 4 This question cannot be answered, given the way the question is worded.
Application Questions/Problems: Matched/Related Samples Design
#2d The correct answer is: Fail to reject
Application Questions/Problems: Independent Samples Design
#5 The correct answer is: Reject the null
Chapter 9
General Thought Questions
# 3 The correct answer is: Two-tailed
# 4 The correct answer is: One-tailed
# 5 The correct answers are: Rejecting; True
# 6 The correct answers are: Failing to reject; False
There is no Question 7 in the General Thought Questions Section
Application Questions/Problems: One-tailed and Two-tailed Critical Values
# 2c The correct answer is: 1.74
Chapter 10
General Thought Questions
# 11 The correct answer is:
Application Questions/Problems
# 5aThe correct answer is:
# 7a The correct answer is:
# 7g The correct answer is: 11
# 7h The correct answer is: 1.74
# 7i The correct answer is: .14
Chapter 12
Application Questions/Problems
#3a The correct answers are: -.89; This is a strong, negative relationship
#3b The correct answers are: .79; 79% of the variation in y is attributable to variation in x
#3c The correct answer is: r = 0
#4a The correct answer is: This is a weak, positive relationship
#4b The correct answers are: .10; 10% of the variation in y is attributable to variation in x
#4c The correct answers are: r=0; Reject the null
#5a The correct answers are: .90; This is a strong, positive relationship
#5b The correct answers are: .81; 81% of the variation in y is attributable to variation in x
#5c The correct answers are; r=0; Reject the null
#6 The correct answer is: a = 29.91 and b = - .23
#7 The correct answer is: a = 17 and b = 4.15
#8a The correct answers are: -.998; This is a strong, negative relationship
#8b The correct answers are .996; 99.6% of the variation in y is attributable to variation in x
#8c The correct answer is: a = 4.12 and b = -.04
#9a The correct answers are: .83; This is a strong, positive relationship
#9b The correct answers are: .69; 69% of the variation in y is attributable to variation in x
#9c The correct answers is: a = -$32.01 and b = 3.67