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7.2.23-T Question Help Listed below are student evaluation ratings of courses, where a rating of 5 is for excellent. The rat
7.2.19-T Question Help A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed b
7.2.14 Question Help In a test of the effectiveness of garlic for lowering cholesterol, 44 subjects were treated with garlic
7.2.13-T Question Help A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subj
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7.2.23-T Here we calculate form data: X = 3.94 S = 0.606 n = 15 a = 1-0.90 = 0.10 (90% confidence level) df = n-1 = 15 -1 = 1

0.606 = 3.94+1.761 v15 = 3.94+ 0.28 = 3.66 < μ< 4.22

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