Unformatted text preview: Population Proportion
1. Determine the Hypotheses
b. The alternative hypothesis is one of the following: right-tailed test left-tailed test two-tailed test
2. Collect the Data
a. Verify that the normality criteria has been satisfied (see previous page).
b. Calculate the sample proportions ̂ and ̂ and the sample difference ̂ ̂.
3. Assess the Evidence
Remember: The a. Note that mean ̂ ̂
value is the probability
b. Calculate the standard deviation
(see #3a on pg. 1 for the formula)
that you will get a
(̂ ̂ )
c. Calculate the test statistic
sample proportion that
is ̂ or more extreme
d. Calculate the -value.
than ̂ in a random
i. Right-tailed test: -value
sample of size .
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This document was uploaded on 04/03/2014.
- Spring '14