QMB3200 2025/2026 Exam Questions
with 100% Correct Answers | Latest
Update
The standard deviation of a point estimator is the - 🧠ANSWER ✔✔standard
error
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
14
16 - 20
1
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
with 100% Correct Answers | Latest
Update
The standard deviation of a point estimator is the - 🧠ANSWER ✔✔standard
error
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
14
16 - 20
1
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
