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Homework Help: Sampling distribution of a difference between two independent sample proportions

  1. Aug 23, 2011 #1
    My apologies that this doesn't fit the template.

    Example 10-3 on https://docs.google.com/viewer?a=v&...GYwdS&sig=AHIEtbS9MYMMYAD7Pc1dAVVqY3Q00V4Kyg" of Lloyd Jaisingh's ''Statistics for the Utterly Confused'' says "the probability that the difference in the proportion of success ... is at least 10 percent is 0.2877."

    I think 10% never enters the question, and 0.2877 is the probability that the difference is at least 30% (from 0.7-0.4). Is the text in error, or am I?
    Last edited by a moderator: Apr 26, 2017
  2. jcsd
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