Question
The sample data are from a normal population: 10, 8, 12, 15, 13, 11, 6, 5....
The sample data are from a normal population: 10, 8, 12, 15, 13, 11, 6, 5.
What is the point estimate of the population mean?
What is the point estimate of the population standard deviation? (Round to two decimal places)
With 95% confidence, what is the margin of error for the estimation of the population mean? (Round to two decimal places)
What is the 95% confidence interval for the population mean? (Round to two decimal places) ________and__________
Homework Answers
Answer #1
The statistic software output for this problem is :
The point estimate of the population mean is 10
The point estimate of the population standard deviation is s = 3.46
With 95% confidence, what is the margin of error for the estimation of the population mean is
= (12.90 - 7.10) / 2
= 2.90
What is the 95% confidence interval for the population mean is ,
7.10 and 12.90
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