Question

A 95% confidence interval for a mean: 

a) is wider than a 99% confidence interval 

b) in repeated samples will include the population mean 95% of the time 

c) will include the sample mean with a probability of 1 

d) is a useful way of describing the accuracy of a study 

e) will include 95% of the observations of a sample.

Answer 1

a) False; 

b) True; 

c) True; 

d) True; 

e) False