QuestionConstruct a confidence interval for LDL cholesterol changes: mean = 3.2, SD = 18.6. What is the best point estimate?

Studdy Solution

STEP 1

Assumptions1. The sample size is47 subjects. The mean change in LDL cholesterol levels is3. mg/d3. The standard deviation of the changes in LDL cholesterol levels is18.6 mg/d

STEP 2

The best point estimate of the mean is simply the sample mean. In this case, the sample mean is given as.2 mg/d. Therefore, the best point estimate of the mean is.2 mg/d.
$\text{Best point estimate of the mean} = \text{Sample mean} =.2 \, \text{mg/d}$

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