If We Knew the Population Mean and Variance, We Would

question 47

Multiple Choice

If we knew the population mean and variance, we would expect

• A) the sample mean would closely approximate the population mean.
• B) the sample mean would differ from the population mean by no less than 1.96 standard deviations only 5% of the time.
• C) the sample mean would differ from the population mean by no more than 1.64 standard deviations only 5% of the time.
• D) the sample mean would differ from the population mean by more than 1.96 standard errors only 5% of the time.