QMB 3200 EXAMINATION TEST 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ Cluster sampling is. Answer: a probability sampling method
◉ The interquartile range is the difference between the. Answer: first
and third quartiles
◉ A __________ can be used to graphically present quantitative data.
Answer: both a histogram and a stem-and-leaf display are correct
◉ The measure of variability easiest to compute, but seldom used as the
only measure, is the. Answer: Range
◉ As the sample size increases, the variability among the sample means.
Answer: decreases
◉ In a standard normal distribution, the range of values of z is from.
Answer: minus infinity to infinity
◉ The t value with a 95% confidence and 24 degrees of freedom is.
Answer: 2.064
, ◉ The number of customers that enter a store during one day is an
example of. Answer: a discrete random variable
◉ Quantitative data that measure how many are ________; quantitative
data that measure how much are ________. Answer: discrete;
continuous
◉ Exhibit 2-3
The number of sick days taken (per month) by 200 factory workers is
summarized below.
Number of Days
Frequency
0-5
120
6 - 10
65
11 - 15
QUESTIONS WITH ANSWERS GRADED A+
◉ Cluster sampling is. Answer: a probability sampling method
◉ The interquartile range is the difference between the. Answer: first
and third quartiles
◉ A __________ can be used to graphically present quantitative data.
Answer: both a histogram and a stem-and-leaf display are correct
◉ The measure of variability easiest to compute, but seldom used as the
only measure, is the. Answer: Range
◉ As the sample size increases, the variability among the sample means.
Answer: decreases
◉ In a standard normal distribution, the range of values of z is from.
Answer: minus infinity to infinity
◉ The t value with a 95% confidence and 24 degrees of freedom is.
Answer: 2.064
, ◉ The number of customers that enter a store during one day is an
example of. Answer: a discrete random variable
◉ Quantitative data that measure how many are ________; quantitative
data that measure how much are ________. Answer: discrete;
continuous
◉ Exhibit 2-3
The number of sick days taken (per month) by 200 factory workers is
summarized below.
Number of Days
Frequency
0-5
120
6 - 10
65
11 - 15
