Sample a Has a Sample Size of 15 and a Standard

Multiple Choice

Sample A has a sample size of 15 and a standard deviation of 4.Sample B has a sample size of 30 and a standard deviation of 6.Both samples were taken from the same population.The 95 percent confidence interval estimate for the standard deviation of the population based on sample A will be ________ that based on sample B.

A) wider than
B) narrower than
C) the same in length as
D) None of the above.