Question: The trial involves a random sample of=12 n=12persons who have high levels of LDL. Each person has their LDL level measured prior to the beginning

The trial involves a random sample of=12

n=12persons who have high levels of LDL. Each person has their LDL level measured prior to the beginning of the drug trial. Each person is then to take a new drug that is believed to lower ones LDL levels. After a period of 4-weeks, the LDL level of each person is measured again. The difference between the initial LDL level and the LDL-level four weeks after taking the drug is then computed.

0.08,0.65,0.13,0.56,0.37,0.04,0.33,0.47,0.04,0.44,0.75,1.12

Assuming the difference in the LDL-levels isNormally distributed, find a 94% confidence interval for

, the mean difference in the LDL-level of a person after taking the drug for four weeks?

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