Lesson 11.pdf - Lesson 11 Hypothesis Tests About...

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Lesson 11: Hypothesis Tests About Proportions In this lesson we will cover two topics: Ø Whether single population proportion ࠵? equals a specific value ࠵? ! Ø Whether two independent population proportions ࠵? ! and ࠵? ! are equal. Basic procedure for a hypothesis test for proportions is very similar to that of with means, except that we will be dealing with z-test statistics not t-test statistics . Hypothesis Tests for Single Proportion P We can outline the basic procedure as below: 1. State null and alternative hypothesis 2. Check if the conditions to continue with the hypothesis test are satisfied and if so choose a significance level ࠵? . 3. Calculate test statistic under H 0 4. Determine the critical region or the p-value (by the way, you should know how to do both of these approaches) 5. Make a decision: reject H 0 or fail to reject H 0 6. State overall conclusion
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  • Fall '08
  • SMITH
  • Statistics, Statistical hypothesis testing, significance level

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