QMB 3200 EXAM SCRIPT 2026 FULL QUESTIONS AND CORRECT ANSWERS

QMB 3200 EXAM SCRIPT 2026 FULL
QUESTIONS AND CORRECT ANSWERS


◉ As the sample size increases, the _____. Answer: standard error of the
mean decreases


◉ The standard deviation of p̄ is referred to as the _____. Answer:
standard error of the proportion


◉ The value of the ___________ is used to estimate the value of the
population parameter. Answer: sample statistic


◉ The standard deviation of x̄ is referred to as the _____. Answer:
standard error of the mean


◉ All of the following are true about the standard error of the mean
EXCEPT _____.


its value is influenced by the standard deviation of the population
it is larger than the standard deviation of the population
it measures the variability in sample means

, it decreases as the sample size increases. Answer: it is larger than the
standard deviation of the population


◉ The finite correction factor should be used in the computation of σx̄
and σȳ when n/N is greater than _____. Answer: .05


◉ The probability distribution of all possible values of the sample mean
is called the ____. Answer: sampling distribution of the sample mean


◉ Stratified random sampling is a method of selecting a sample in
which _____. Answer: the population is first divided into groups, and
then random samples are drawn from each group


◉ A numerical measure from a population, such as a population mean, is
called _____. Answer: a parameter


◉ The variance of a sample or a population cannot be _____. Answer:
negative


◉ The measure of central location most often reported for annual
income and property value data is the _____. Answer: median


◉ The variance is equal to the _____. Answer: squared value of the
standard deviation