QMB 3200 Final Exam Questions & Answers |
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Practice questions for this set
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point estimators
Choose an answer
Sample statistics, such as x̅ , s, or p̅ , that provide the point estimate of the population
1
parameter are known as:
Suppose we have the following data: 12, 17, 13, 25, 16, 21, 30, 14, 16, and 18. To find the 10%
2
trimmed mean, what numbers should be deleted from the calculation?
, In a sample of 500 students whose mean height is 67.8 inches, 150 were women. If the
3 mean height of the women was 63.0 inches, what is the mean height of the men in the
sample?
When testing water for chemical impurities, results are often reported as BDL, that is,
below detection limit. The following data set gives the measurements of the amount of
lead in a series of water samples taken from inner-city households (ppm):
5, 7, 12, BDL, 10, 8, BDL, 20, 6
4
Which of the following is correct?
a. The mean lead level in the water is about 10 ppm.
b. The median lead level in the water is 8 ppm.
c. The mean lead level in the water is about 8 ppm.
d. The median lead level in the water is 7 ppm.
Don't know?
Terms in this set (112)
Suppose we have the following data: 12 and 30
12, 17, 13, 25, 16, 21, 30, 14, 16, and 18. To
find the 10% trimmed mean, what
numbers should be deleted from the
calculation?
Which of the following is not resistant b. mean
to the outliers in a data set?
a. Median
b. Mean
c. Variance
d. Interquartile range
The pth percentile is a value such that less than or equal to this value.
at least p percent of the observations
are:
, Which of the following provides a a. mean
measure of central location for the
data?
a. Mean
b. Variance
c. Mode
d. Standard deviation
When testing water for chemical d. The median lead level in the water is 7 ppm.
impurities, results are often reported
as BDL, that is, below detection limit.
The following data set gives the
measurements of the amount of lead
in a series of water samples taken
from inner-city households (ppm):
5, 7, 12, BDL, 10, 8, BDL, 20, 6
Which of the following is correct?
a. The mean lead level in the water is
about 10 ppm.
b. The median lead level in the water
is 8 ppm.
c. The mean lead level in the water is
about 8 ppm.
d. The median lead level in the water
is 7 ppm.
A student made scores of 85, 56, and 88
91 on her first three statistics tests.
What score does she need to make
on her next test to have an 80 test
average?
Latest Already Graded A+ UPDATE 2026
Play your way to mastery with fun games
Match Blocks Charms NEW
Practice questions for this set
Learn 1 /7 Study with Learn
point estimators
Choose an answer
Sample statistics, such as x̅ , s, or p̅ , that provide the point estimate of the population
1
parameter are known as:
Suppose we have the following data: 12, 17, 13, 25, 16, 21, 30, 14, 16, and 18. To find the 10%
2
trimmed mean, what numbers should be deleted from the calculation?
, In a sample of 500 students whose mean height is 67.8 inches, 150 were women. If the
3 mean height of the women was 63.0 inches, what is the mean height of the men in the
sample?
When testing water for chemical impurities, results are often reported as BDL, that is,
below detection limit. The following data set gives the measurements of the amount of
lead in a series of water samples taken from inner-city households (ppm):
5, 7, 12, BDL, 10, 8, BDL, 20, 6
4
Which of the following is correct?
a. The mean lead level in the water is about 10 ppm.
b. The median lead level in the water is 8 ppm.
c. The mean lead level in the water is about 8 ppm.
d. The median lead level in the water is 7 ppm.
Don't know?
Terms in this set (112)
Suppose we have the following data: 12 and 30
12, 17, 13, 25, 16, 21, 30, 14, 16, and 18. To
find the 10% trimmed mean, what
numbers should be deleted from the
calculation?
Which of the following is not resistant b. mean
to the outliers in a data set?
a. Median
b. Mean
c. Variance
d. Interquartile range
The pth percentile is a value such that less than or equal to this value.
at least p percent of the observations
are:
, Which of the following provides a a. mean
measure of central location for the
data?
a. Mean
b. Variance
c. Mode
d. Standard deviation
When testing water for chemical d. The median lead level in the water is 7 ppm.
impurities, results are often reported
as BDL, that is, below detection limit.
The following data set gives the
measurements of the amount of lead
in a series of water samples taken
from inner-city households (ppm):
5, 7, 12, BDL, 10, 8, BDL, 20, 6
Which of the following is correct?
a. The mean lead level in the water is
about 10 ppm.
b. The median lead level in the water
is 8 ppm.
c. The mean lead level in the water is
about 8 ppm.
d. The median lead level in the water
is 7 ppm.
A student made scores of 85, 56, and 88
91 on her first three statistics tests.
What score does she need to make
on her next test to have an 80 test
average?
