Test of Two Proportions |
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Jay Arthur
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Use our Two Proportion test template to compute a confidence interval and perform a hypothesis test of the difference between two proportions. For example, if you are sending a direct mail piece to a group of prospects you may want to know if the proportion of customers who respond could be increased by offering free shipping. You would offer free shipping on half of your mailings and see if you have more purchases from the group that was offered free shipping from the group that was not. Here is how to perform a Test of Two Proportions using the QI Macros Proportion template:
Other Statistical tests in the QI Macros The Test of Two Proportions template is just one of the tools included in the QI Macros for Excel SPC Software for Excel.
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