Thread: Need answers and some explanation...

Q1. The finite population multiplier does not have to be used when the sampling fraction is:

a. greater than 0.05 b. greater than 0.50 c. less than 0.50 d. None

Q2. A certain normally distributed population has a known s.D of 1. What is the total width of a 95% confidence interval for the population mean?

a. 0.98 b. 1.96 c. 3.92 d. cant be determined from above info.

Originally Posted by nasir31971

Q1. The finite population multiplier does not have to be used when the sampling fraction is:

a. greater than 0.05 b. greater than 0.50 c. less than 0.50 d. None

need more information on the above

Q2. A certain normally distributed population has a known s.D of 1. What is the total width of a 95% confidence interval for the population mean?

a. 0.98 b. 1.96 c. 3.92 d. cant be determined from above info.

If you know the mean and SD what are the limits of the 95% CI? What is the corresponding width?

CB