Question

A 90% confidence interval for mu, the population mean 1. Always contains x-bar, the sample mean 2. Is created by a process that will yield an interval that does not contain mu 10% of the time 3. Is wider if s, the sample standard deviation, is used than if sigma, the population standard deviation, is known and used 4. All of these 1 2 3. 4 Question 19 4 pts After sampling 16 members of a normal population you find the sample mean equals 50 and the sample standard deviation, s, equals 10. Construct a 95% confidence interval estimate for mu, the population mean. 1. 45.62 - 54.38 2. 44.67 - 55.33 3. 45.10 - 54.90 4. None of these

          A 90% confidence interval for mu, the population mean
1. Always contains x-bar, the sample mean
2. Is created by a process that will yield an interval that does not contain mu 10% of the time
3. Is wider if s, the sample standard deviation, is used than if sigma, the population standard deviation, is known and used
4. All of these
1
2
3.
4
Question 19
4 pts
After sampling 16 members of a normal population you find the sample mean equals 50 and the sample standard deviation, s, equals 10. Construct a 95% confidence interval estimate for mu, the population mean.
1. 45.62 - 54.38
2. 44.67 - 55.33
3. 45.10 - 54.90
4. None of these

A 90% confidence interval for mu, the population mean
1. Always contains x-bar, the sample mean
2. Is created by a process that will yield an interval that does not contain mu 10% of the time
3. Is wider if s, the sample standard deviation, is used than if sigma, the population standard deviation, is known and used
4. All of these
1
2
3.
4
Question 19
4 pts
After sampling 16 members of a normal population you find the sample mean equals 50 and the sample standard deviation, s, equals 10. Construct a 95% confidence interval estimate for mu, the population mean.
1. 45.62 - 54.38
2. 44.67 - 55.33
3. 45.10 - 54.90
4. None of these

Added by Nicole T.

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