Perform a hypothesis test with 99% confidence

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Question: Write the null and alternative hypothesis for the following narrative

A surgeon believes that if knee surgery patients go to physical therapy twice a week (instead of three times), their recovery period will be shorter. Average recovery time for knee surgery patients who go to physical therapy three times a week is 12 weeks. So, he randomly samples 30 patients to perform a hypothesis test with 99% confidence"

Reference no: EM133482353

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