Textbook

Medical Statistics from Scratch: An Introduction for Health Professionals, 2nd Edition

ISBN: 978-0-470-51301-9

Paperback

300 pages

Medical Statistics from Scratch: An Introduction for Health Professionals, 2nd Edition (0470513012) cover image

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Page	Details	Date
66	Errata Table 5.5, heading to last column. For �Mas� read �Mean�.	May 2009
164	Errata The last bullet point should read �Take the result from the previous step. This result is called the test statistic.�	May 2009
164	Errata Footnote. Remove the square root sign from the equation.	May 2009
268	Errata Answer 14.2. Delete all of the existing answer and substitute the following: The test statistic = {(8 - 3.667)2/3.667 + (3 - 7.333)2/7.333 + (2 � 6.333)2/6.333 + (17-12.667)2/12.667} = 12.109. Since we have a 2 x 2 table, then we are in the first row of Table 14.3, because (2 � 1) x (2 � 1) = 1 x 1 = 1, and the critical chi-squared value which must be exceeded to reject the null hypothesis is 3.85. The test statistic value of 12.109 exceeds this value, so the evidence is strong enough for us to reject the null hypothesis of equal proportions of smokers in both Agar groups. There does appear to be a relationship between smoking and Apgar scores.	May 2009