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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
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Conditions for a z test about a proportion
Problem
Moussa saw a commercial on television that claimed out of dentists recommend using a specific brand of chewing gum. He suspected that the true proportion was actually lower, so he took an of dentists and asked whether or not they recommend using that brand of chewing gum. He wants to use the sample data to test versus , where is the proportion of all dentists that recommend this brand of chewing gum.
Which conditions for performing this type of test did Moussa's sample meet?