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4. Test whether pl > p2 given independent sample data: x1 = 368, n1 =541, x2 = 351, n2 = 593. Use a = 0.05.

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4. Test whether pl > p2 given independent sample data: x1 = 368, n1 =541, x2 = 351, n2 = 593. Use a = 0.05. Assume samples are obtained using simple random sampling and test the hypothesis. a) Write the hypotheses (6 points) Ho: HI: Compute P1 , P2 and p b) Compute the test statistic Zo = c) determine the critical value Za = d) find the P-value e) Decision regarding Ho f) Conclusion

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