Posted by **tracy10** on Sunday, June 23, 2013 at 11:15pm.

Find the 98% confidence interval for estimating d based on these paired data and assuming normality. (Give your answers correct to one decimal place.)

Before 50 55 61 52 68 54

After 34 58 56 36 40 39

Lower Limit Incorrect: Your answer is incorrect. 64.0

Upper Limit Incorrect: Your answer is incorrect. 125.4

I don't know how I missed them? I had mean 87.75, sd 30.27, vari 16969.29545

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