Main content
Course: Statistics and probability?>?Unit 12
Lesson 3: Tests about a population proportion- Constructing hypotheses for a significance test about a proportion
- Writing hypotheses for a test about a proportion
- Conditions for a z test about a proportion
- Reference: Conditions for inference on a proportion
- Conditions for a z test about a proportion
- Calculating a z statistic in a test about a proportion
- Calculating the test statistic in a z test for a proportion
- Calculating a P-value given a z statistic
- Calculating the P-value in a z test for a proportion
- Making conclusions in a test about a proportion
- Making conclusions in a z test for a proportion
? 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice
Calculating the P-value in a z test for a proportion
Problem
A campaign manager for a political candidate released a series of advertisements criticizing the opposing candidate in an upcoming election. The opposing candidate previously had the support of of voters, so the manager wants to test versus , where is the proportion of voters that support the opposing candidate.
After running the advertisements, the campaign manager obtained a random sample of voters and found that of those sampled supported the opposing candidate.
Which of the following represents the P-value for their test?