The Registrarʹs Office at State University Would Like to Determine

Multiple Choice

The registrarʹs office at State University would like to determine a 95% confidence interval for the mean commute time of its students. A member of the staff randomly chooses a parking lot and
Surveys the first 200 students who park in the chosen lot on a given day. The confidence interval is

A) not meaningful because the sampling distribution of the sample mean is not normal.
B) meaningful because the sample size exceeds 30 and the Central Limit Theorem ensures normality of the sampling distribution of the sample mean.
C) meaningful because the sample is representative of the population.
D) not meaningful because of the lack of random sampling.