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In a randomized trial of the drug Lipitor, one group receives the drug (Group I) and...

  1. In a randomized trial of the drug Lipitor, one group receives the drug (Group I) and the other group does not (Group Il). Suppose 90% of the difference in the rates of adverse symptoms (I-Il) is calculated to be between [-.08 , +.12]. Based on this interval, do you think there is a difference in the trues rates of adverse events? Yes or

/ Why or why not?

math   Statistics-And-Probability   
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Answer #1

The confidence interval for the difference in the rates of adverse symptoms at 90 % confidence level is (-0.08, +0.12), hence as we can see that the confidence interval is from negative to positive value thag also include 0, so we cannot conclude statistically that thera is a difference in the rate of adverse symptoms of two groups.

So, the answer is No.

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