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    Hypothesis Testing, Test Statistics and Rejection Area

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    Let X... We observe X=9 out of n=15. Is the battery more likely to last more than 5 years?

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    Solution Preview

    i. test
    Ho: p = 0.5 vs.
    Ha : p > 0.5

    ii. p^ = X/n = 9/15 = 0.6
    we compute Standard error by
    SE = SQRT ...

    Solution Summary

    Hypothesis testing, test statistics and rejection area are investigated and discussed in the solution. The solution is detailed and well presented.