Resources for:

    Paul Newbold, Statistics for Business & Economics, 4th Edition.

• Typos to correct
• Answers to Selected Exercises
• SHAZAM commands and data

Answers to Selected Exercises

Note: Mathematical notation may not print correctly on some printers.

Chapter 3 - Probability

• Question 16 - page 105
• Question 22 - page 106
• Question 26 - page 106
• Question 28 - page 107
• Question 30 - page 107
• Question 32 - page 107
• Question 42 - page 121
• Question 44 - page 121
• Question 46 - page 122
• Question 58 - page 123
• Question 62 - page 124

Chapter 4 - Discrete Random Variables and Probability Distributions

• Question 4 - page 142
• Question 6 - page 142
• Question 10 - page 143
• Question 12 - page 143
• Question 26 - page 156

Chapter 5 - Continuous Random Variables and Probability Distributions

• Question 2 - page 193
• Question 6 - page 193
• Question 24 - page 205
• Question 26 - page 205
• Question 28 - page 205
• Question 30 - page 206
• Question 48 - page 218
• Question 60 - page 220

Chapter 6 - Sampling and Sampling Distributions

• Question 2 - page 238
• Question 10 - page 239
• Question 12 - page 240
• Question 16 - page 241

Chapter 7 - Point Estimation

• Question 6 - page 264
• Question 16 - page 267

Chapter 8 - Interval Estimation

• Question 4 - page 290
• Question 10 - page 291
• Question 38 - page 312
• Question 48 - page 318
• Question 70 - page 321

Chapter 9 - Hypothesis Testing

• Question 2 - page 342
• Question 43 - page 375
• Question 48 - page 376
• Question 64 - page 378
• Question 72 - page 380

Typos to correct in Newbold 4th Edition

Chapter 4 - Exercise 26, page 156 - the answer in the back of the book is wrong. The correct answer is available here.

Chapter 6 - Equation (6.2.1), page 230
The denominator should be division by sqrt(n). The division sign is missing.

Chapter 8, top of page 298 - the lower and upper bounds of the confidence interval require a chi-square term in the denominator. This is shown in other formula in the section.

prepared by Diana Whistler,
diana@shazam.econ.ubc.ca