The page gives a list of known issues in the third edition of A Portable Introduction to Data Analysis, published in July 2004.

The errata are classified as being explanatory notes, simple typos or real mathematical errors.

If you find an error in the book then email m.bulmer@uq.edu.au. The first person to report each error will receive a Freddo Frog. (If it is a mathematical error then you get a filled Freddo!)

A minor revision of the third edition was released in January 2005 which corrected all the errors listed here, except those highlighted in grey.

 

PageTypeDescription
iii Typo "fully expositions" should be "longer expositions"
3 Typo an age measured in whole years
5 Typo ... so that we can see how our results match up ...
8 Typo "Sharede" in table should be "Shared"
11 Typo trialing a new drug
15 Typo random processes
21 Typo variability in sleep
24 Typo contribution of histograms
31 Math The quartiles are wrong in the weight example. They should be Q1 = 51 and Q3 = 70.
47 Typo particularly since it squares the deviations
47 Typo "male and female heights have roughly the same amount of variability"
49 Typo "(see Section 9)"
52 Typo "The histogram is a an example of" should be "The histogram is an example of"
64 Typo y values above the y mean
111 Typo "so his work was published"
120 Typo "Here 180 cm is 13 cm above the mean"
156 Math The denominator in the z calculation should be 2.36, not 3.83. The value of z is still correct.
165 Note The 13.291 in the calculation is the sample standard deviation (s) of the 30 weights in Table 1.4.
178 Typo The first row in Table 25.1 should be "High" and the second "Normal".
186 Typo The denominator should be 19, not 18, in the confidence interval calculation. (The margin of error, 5.52, is still correct.)
188 Typo Exercise 1 should compare "dye uptake", not "growth".
200 Math In the formula for se(ln(RR)), the numerators should be b/a and d/c (not a/b and c/d). This changes the numbers in the example.
202 Typo The model for linear regression should have a capital Y, so Y = β0 + β1x + U.
211, 212 Typo The use of "log" on these pages should be replaced by "ln" for consistency.
213 Typo "the assumptions for small samples".
222 Typo The caption for Table 32.3 should have "pulse rate" instead of "hours slept".
222 Typo Second last line: "there will be a lot of these" (not "we").
252 Math The Interaction MS in Table 35.6 is 0.00384.
284 Math The P-value from t19=1.41 is 0.087, not 0.174, since this is a one-sided test.