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The following sample data are from a normal population: 8, 6, 10, 13, 11, 9, 4,...

The following sample data are from a normal population: 8, 6, 10, 13, 11, 9, 4, 3.

(a)

What is the point estimate of the population mean?

(b)

What is the point estimate of the population standard deviation? (Round your answer to three decimal places.)

(c)

With 95% confidence, what is the margin of error for the estimation of the population mean? (Round your answer to one decimal place.)

(d)

What is the 95% confidence interval for the population mean? (Round your answer to one decimal place.)

Math   Statistics-And-Probability   
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