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Course: AP??/College Statistics?>?Unit 10
Lesson 8: Confidence intervals for the difference of two proportions- Confidence intervals for the difference between two proportions
- Examples identifying conditions for inference on two proportions
- Conditions for inference on two proportions
- Calculating a confidence interval for the difference of proportions
- Two-sample z interval for the difference of proportions
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Conditions for inference on two proportions
Problem
A school district is considering a change that would involve switching the daily start times for its elementary and high schools. Administration wants to take a sample of parents from each type of school and perform a two-sample test to see if the proportion who support the change is significantly different between the two groups.
Which of the following are conditions for this type of test?