To test the efficacy of a new cholesterol-lowering medication, 10 people are selected at random. Each has their LDL levels measured (shown below as Before), then take the medicine for 10 weeks, and then has their LDL levels measured again (After). Subject:1,2,3,4,5,6,7,8,9,10 Before: 154,176,180,140,141,173,123,124,177,137 After: 127,188,152,140,123,185,115 134 180 147 Give a 92.9% confidence interval for μB−μAμB−μA, the difference between LDL levels before and after taking the medication. Confidence Interval =

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