The mean symptom score is 74 with a standard deviation of

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Suppose a secondary outcome is recorded in the trial described in Problem 10 reflecting asthma symptom severity measured on a scale of 0 to 100, with higher scores indicating more severe symptoms. In the participants who receive the experimental medication, the mean symptom score is 74 with a standard deviation of 5.6, and in the placebo group, the mean symptom score is 85 with a standard deviation of 6.0. Is there a difference in mean symptom scores between groups? Run the appropriate test at a 5% level of significance

Reference no: EM13617970

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