A medical researcher randomly assigns 100 high-risk heart patients into two groups. One group will get open heart surgery and the other groups will get a transcatheter aortic valve replacement. She will compare the two groups to see how long they live after their procedures. What statistical test should she use to analyze the data?

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A:

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A: From the given question,

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A:

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A: Here n=20

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A:

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Q: . What statistical test should he use to analyze the data?

A:

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A:

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Q: a statistics class, students took their pulses before and after being frightened. The frightening…

A: Answer:-

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A: Enter the given data in EXCEL sheet as shown below: