Z test for two population proportions

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  Test, at the 1% level of significance, whether the two population proportions are significantly different. Formulate and test the appropriate hypothesis. Use the critical value approach. Please see attached file.

• Proportion and and Confidence Intervals

  Proportions 0.147727273 Average Proportion 0.266666667 Z Test Statistic 0.809135596 Two-Tail Test Lower Critical Value -1.9600 Upper Critical Value 1.9600 p-Value 0.4184 Do not reject the null hypothesis g.

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  Lists the assumptions made about the sample and the population for each test. Please see the attached file. Follow this flow chart to decide whether to use a z-test or a t-test. The assumptions for each test are under the name of the test.

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• Test of hypothesis for equality of two proportions

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• Hypothesis test: difference in proportions

  Is there a significant difference in the population proportions at α = .10? This is a large sample two-tailed test of hypothesis about , the difference between two population proportions. The significance level of the test is 0.10.

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• Hypothesis Test: Difference of Proportions

  - View the attachment for the rest of the solution. Thanks for using BrainMass. This solution provides the step by step method for the calculation of the Z test statistic for the difference of two population proportions.