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Question: According to liposuction4you.com, the maximum amount of fat and fluid that can be removed safely during a liposuction procedure is 6 liters. Suppose that the following data represent the amount of fat and fluid removed during 12 randomly selected liposuction procedures. Assume that the population distribution of such amounts is normal.

1.84      2.66        2.96         2.42        2.88            2.86

3.66      3.65        2.33         2.66        3.20            2.24

a. What is the point estimate of the corresponding population mean?

b. Construct a 98% confidence interval for the corresponding population mean.

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