The following sample data are from a normal population: 10, 8, 12, 15, 13, 11, 6, 5. What is the point estimate of the population mean? b. What is the point estimate of the population standard deviation? With 95% confidence, what is the margin of error for the estimation of the population mean? d. What is the 95% confidence interval for the population mean?

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A: Given:  NT=21T2-80T+24 , 4<T<34 Tt=6t+1.8T

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