Question

1. The sample mean always lies at the center of the confidence interval for the true population mean ( µX ).

2. The sample mean is also known as the best point estimate for µX .

3. The true population mean is always in a 90% confidence interval for µX .

4. If one-hundred (100) 95% confidence intervals for µX are created from some population, the true population mean is likely to be in approximately 95 of these 100 confidence intervals.

Answer 1

The sample mean always lies at the center of the confidence interval for the true population mean ( µX ).

This statement is True

The sample mean is also known as the best point estimate for µX .

True

The true population mean is always in a 90% confidence interval for µX .

False

If one-hundred (100) 95% confidence intervals for µX are created from some population, the true population mean is likely to be in approximately 95 of these 100 confidence intervals.

False