Perform this test, and report a p-value (two-tailed)? Ophthalmology The following data are from a study on
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Ophthalmology
The following data are from a study on Botox injections. Patients received a high-dose injection in one eye (experimental treatment = treatment E) and a low-dose injection in the other eye (control treatment = treatment C). Patients were asked to rate the level of pain in each eye on a 1€“10 scale, with higher scores indicating more pain. The assignment of treatments to eyes was randomized. The subjects came back over several visits. Data from the last visit are given in Table 8.39.
Table 8.39 Effect of Botox injection on eye pain
Suppose we wish to compare the pain score in the E eye vs. the pain score in the C eye.
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First we must calculate the pain difference scores Now the test statistic t d s...View the full answer
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