A researcher thinks that if knee surgery patients go to physical therapy three times a week (instead of 2 times), their recovery period will be shorter. Average recovery times for all knee surgery patients is 8.2 weeks (with PT twice a week). The researchers took a random sample of 34 patients who had knee surgery and asked them to do PT three times a week. The average recovery time of the 34 patients was 7.9 weeks. The p-value of the appropriate hypothesis test is 0.11. What is the correct conclusion at the 10% significance level?
Added by Emilio H.
Step 1
** - Null Hypothesis (H0): There is no difference in recovery time; the average recovery time for patients doing PT three times a week is equal to 8.2 weeks. (μ = 8.2) - Alternative Hypothesis (H1): Patients doing PT three times a week have a shorter recovery time; Show more…
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A researcher thinks that if knee surgery patients go to physical therapy twice a week (instead of 3 times), their recovery period will be longer. Average recovery times for knee surgery patients is 8.2 weeks. The null hypothesis can be stated as: The average recovery time is less than 8.2 weeks Select one: True False
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