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Unformatted text preview: Testing a Proportion
Steps in Testing a Proportion
• Step 3: Calculate the test statistic
π (1-π 0)
p – π0
Where σ p = 0
σp • 9-36 Now, check the normality assumption:
nπ 0 > 10 and n(1-π 0) > 10. Step 4: Make the decision
If the test statistic falls in the rejection
region as defined by the critical value, we
reject H0 and conclude H1. ...
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- Spring '10