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### Zhiyi Zhang

### Errata

- Changed 0.020 to 0.20 in Question 5(b) of the Basic Exercises in Chapter 5, Section 4 (9/14/20)
- Changed the "sigma/2" to "alpha/2" in two instances (once in Example 8 and once in Example 9) in Chapter 7, Section 4. Note this change appears in the online version of this book and in the PDF, but not in the eBook (10/28/20).
- Changed the "sigma/2" to "alpha/2" in the equation directly above Example 8 in Chapter 7, Section 4. Note this change appears in the online version of this book and in the PDF, but not in the eBook (12/2/20).
- Changed "15 Type A strips..." to "16 Type A strips..." and "20 Type B strips..." to "21 Type B strips..." in Example 6 in Chapter 11, Section 3. Note this change appears in the online version of this book and in the PDF, but not in the eBook (12/2/20)
- Changed "five categories" to "four categories" in Basic Exercises Question 1 in Chapter 11 Section 2 (12/17/20)
- Changed "Q_3=3800" to "Q_3=3050" in Question 9 Part (c) of Chapter 2 Section 4 (12/17/20)
- Changed "n=10" to "p=0.25" in Question 7 Part (a) of Chapter 4 Section 3 (12/17/20)
- Changed "n=957" to "n=975" in Question 10 Part (c) of Chapter 4 Section 3 (12/17/20)
- Changed "n=1750" to "p=0.79" in Question 10 Part (d) of Chapter 4 Section 3 (12/17/20)
- Changed "P(−4.22 < Z < −1.39)" to "P(−1.37 < Z < 5.11)." in Question 5 Part (b) of Chapter 5 Section 2 (12/17/20)
- Parts (b) and (c) of Question 1 in Chapter 5 Section 3 were switched (12/17/20)
- Added two values—"25" on the left and "20" on the right—to the bottom of the data set in Question 14 of Chapter 9 Section 2 (12/17/20)
- Changed the answer to Basic Exercises 5(b) in Chapter 5, Section 4 from 0.84 to 2.05 (2/10/21)
- Changed the "=" sign in the alternative hypothesis, "Ha: mu = 127.50," in Example 1 in Chapter 8, Section 1 to a ">" sign (2/10/21)