Please email me if you notice additional errors.
2nd Edition: Unfixed trivial errors (April 2012)
 Page 11, first line of second full paragraph. Change "were designed" to "was designed".
 Page 11, middle. "evidence that the treatment brings down the value" should be "up" not "down".
 Page 11, second to bottom paragraph. It refers to Figure 1.1C but should refer to 1.1B.
 Page 29, axis title of figure should be "Nineteen", not "Twenty".
 Page 46, third row of table, last sentence. 34.29% survival, not 34.9%.
 Page 63, second line of main text. Change "greater" to "less than or equal to".
 Page 105, two thirds of the way down. The number 3.18 should be 4.30.
 Page 221, Table 30.2. The labels for column A and B are backwards.
 Page 264. "Left" should be "Top left", "Middle" should be "Top right", and "Right" should be "Bottom"
 Page 293, table 36.4. The labels "fixed" and "variable" are swapped.
2nd Edition: Errors fixed in the first, second, or third printings
This page lists all the errors I know about in the first three printings. The publisher fixed mistakes in each printing but is not able to tell me which errors were fixed when.
Mistakes
 Page 73. The equation at the top of the page is wrong. The entire right side of the equation should be enclosed in a square root.
 Page 129, answer to second question. Replace the second (incorrect) and third (irrelevant) sentence with, "It depends on the scientific context."
 Page 148, end of first paragraph. The phrase "statistically significant" should be "not statistically significant".
 Page 227, first sentence of the third paragraph. Change from "Here is a conclusion that is easy to remember." to "Here is a ruleofthumb that can be used when the two sample sizes are equal or nearly equal."
 Page 227. second sentence of fourth paragraph. Change "do not overlap, the P" to "do not overlap, and the sample sizes are nearly equal, the P".
 Page 229, legend of table 30.3. Replace entire legends with: "Rules of thumb for interpreting error bars that overlap or do not overlap. These rules only apply when comparing two means with an unpaired t test, and when the two sample sizes are equal or nearly equal."
 Page 318, bottom, definition of high VIF. Change "say > 0.90" to "say > 10.0".
Minor corrections
 Page 64, legend to Figure 7.5. Change "greater than" to "less than or equal to".
 Page 104, line 3. The word "value" is extraneous. It should read, "The SEM computed from one sample is your best estimate..."
 Page 107, legend to Figure 14.1. The SEM and CI error bars don't actually portray variability  they show how precisely you have determined the population means.

Page 132, Figure 17.2. The 95% CI should be centered on the Observed Mean and the label n=130 shouldn't be split on two lines. Correct figure:
 Page 154. Replace the paragraph after the two bullet points with: "Each hypothesis is flipped to form a onesided null hypothesis (that the mean ratio is less than 0.80, and that the mean ratio is greater than 1.25). If both onetail P values are smaller than a preset threshold, you reject both null hypotheses, and so conclude that the mean ratio must be between 0.80 and 1.25. Thus the results demonstrate equivalence."
 Page 161, first heading. Change "not needed" to "not essential".
 Page 161, sixth paragraph. Change "No corrections were needed," to "The reader does not need to try to informally correct for multiple comparisons, "
 Page 165, second to bottom paragraph. Change "for 90%" to "for at least 90%", and "10% to be" to "no more than 10% to be".
 Page 229, caption to Figure 30.5. Change "less than 0.005" to "much less than 0.05." With large samples, in fact the P value must be less than than 0.005, as it is here. But a more general statement is to say that nonoverlapping 95% confidence intervals mean the P value is much less than 0.05.
 Page 308, top. Change "The investigators don't say...... range of ages." to "The subjects ranged from 2069 years old. The mean age was 37 with a standard deviation of 14. "
 Page R2. Missing reference (cited on p 174): Berry, D. A. (2007). The difficult and ubiquitous problems of multiplicities.Pharmaceutical Statistics , 6, 155160.
 Page R8. Missing reference (cited on page 353): Wilcox, R. (2001) Fundamentals of Modern Statistical Methods: Substantially Improving Power and Accuracy. New York: Springer. ISBN=0387951571
Trivial
 Page 11, middle. Change the sentence that begins with "Again..." to "These values alone would seem to be convincing evidence that the treatment increases blood pressure. "
 Page 11, bottom. Change "Figure 1.1C' TO 'Figure 1.1B".
 Page 14, bottom. Change "most statistics book," to "most statistics books,".
 Page 75, second paragraph. "Predictable" is misspelled.
 Page 92, bottom. The six row in the table has an extra horizontal line dividing into two parts.
 Page 112, line 3. Change "fraction" to "proportion".
 Page 112, middle of page, first sentence under "how many P values were calculated?". The sentence should end with a period, not a question mark.
 Page 114, line 2. Change "1/10" degree Fahrenheit to "1/2".
 Page 115, bottom. Change "11.0/17.0=0.64" to "11.0/17.2=0.64".
 Page 153, middle of the 5^{th} paragraph. “Figure 21.1” should be 21.2, and “Figure 21.2” should be 21.3.
 Page 154, second paragraph. “Juggling two null hypothesis …” should be “Juggling two null hypotheses”.
 Page 162 seems to start midsentence as if something is missing. Nothing is missing, but a sentence is hidden between Table 22.1 and 22.2.
 Page 162, Table 22.2, middle of the last row. Insert “is” between “hypothesis” and “really”.
 Page 162, second to bottom line. "Table 22.3" should be "Table 22.2".
 Page 166, middle of the page: Change "2/200" to “2/100”.
 Page 230, bottom: Change “Chapter 39 will explain …” to "Chapter 41 will explain …”
 Page 242, middle. Change "23.7" to "24.7".
 Page 271, middle. Change "insulin sensitivity (the independent variable)" to "insulin sensitivity (the dependent variable)".
 Page 293, end of middle section. Remove the word "to" after "Instead,".
 Page 300, top, add to the end of the table legend: "This model is slightly simplified."
 Page 306. Third line under the equation. Add "logarithm of" in front of "odds ratio".
 Page 307. Bottom row of table. Replace 1.994 with 1.094.
 Page 307, top. Change “equation at the top of this page" to "equation on the previous page".
 Page 307, middle. Replace "37.3" with "37.5".
 Page 307, sixth line from bottom. Replace "risk" with "odds".
 Page 308, lines 8 and 13. Replace "risk" with "odds".
 Page 308, third line. Replace "father" with "further".
 Page 308, fourth line from bottom. Replace "analysis, even... example is" to "time to a febrile seizure, "
 Page 311, Change two occurrences (one in equation, other in text) of β_{12} to β_{1,2}
 Page 314. Break third bullet item into two items: "Conditional logistic regression", "Conditional proportional hazards regression".
 Page 313. Break fourth bullet item into two items: "Repeated measures ANOVA", "Repeated measures analysis of covariance (ANCOVA)"
 Page 316, second line. Remove the word "equals".
 Page 328, middle, just above the Q&A. Change "The same kind..." to "Similar kinds..."
 Page 334, top. Change “significantly significant” to “statistically significant”.
 Page 358, bottom. The first paragraph under "Bayes revisited" is incomplete. Change "discussed in Chapter" to "discussed in Chapter 18."
 Page 356, top, legend to Table 42.2. Change "0.01" to "0.01%".
 Page 384, second line. "Weight" should be "width".
 Page 391, top, heading of table 46.1: Change “NM” to "nM” twice.
 Page 397, middle. Change “a significance level of 80%” to “a significance level of 5%”.
 Page 442, top. Change “Where the two variables” to Were the two variables”.