Statistics 7.3 - 7-3 Testing a Claim About a Proportion Testing Claims About a Population Proportion p Assumptions 1 The sample observations are a

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7-3 Testing a Claim About a Proportion Testing Claims About a Population Proportion p Assumptions 1. The sample observations are a simple random sample. 2. The conditions for a binomial distribution are satisfied. 3. The conditions are both satisfied so the binomial distribution of sample proportions can be approximated by a normal distribution with 5 and 5 np nq ≥≥ and np npq μσ == . Notation n = sample size or number of trials ˆ x p n = (sample proportion) p = population proportion (used in the null hypothesis)
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This note was uploaded on 04/08/2008 for the course MAT 143 taught by Professor Stone during the Spring '07 term at North Shore Community College.

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