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    Hypothesis Test on Chances of Surviving Brain Surgery

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    Presume that the statistics say that the chances of surviving after brain surgery is 25%. So the Surgery Center would like to test whether it is 25% or less. Conduct a hypothesis test.

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    Solution Preview

    By given information, we can set up the following hypotheses.

    Null ...

    Solution Summary

    Solution briefly sets up a hypothesis for testing the rate of survival among brain surgeries as well as instructs what to do for the next step.