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13. A recent sample of 20 individuals found that the average number of therapy sessions these persons required to recove
Posted: Wed May 04, 2022 12:49 pm
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13. A recent sample of 20 individuals found that the average number of therapy sessions these persons required to recover from shoulder surgery was 9.6, with a standard deviation of 2.8. A separate sample of 25 individuals found that the average number of sessions these persons required to recover from hip surgery was 10.3, with a standard deviation of 2.3. At a = 0.01, is there a statistically significant difference in the means? Conduct an appropriate hypothesis test.