Straighterline Business Stats Final exam with
correct answers
The main purpose of descriptive statistics is to - 🔰CORRECT
ANSWERS ✔✔Summarize data in a useful and informative
manner
Which word is NOT part of the definition of descriptive statistics? -
🔰CORRECT ANSWERS ✔✔Predicting
A marketing class of 50 students evaluated the instructor using the
following scale: superior, good, average, poor, and inferior. The
descriptive summary showed the following survey results: 2%
superior, 8% good, 45% average, 45% poor, and 0% inferior. - 🔰
CORRECT ANSWERS ✔✔c. Most students rated the instructor as
poor or average.
What type of variable is the number of robberies reported in your
city? - 🔰CORRECT ANSWERS ✔✔Quantitative
The Nielsen Ratings break down the number of people watching a
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,particular television show by age. What level of measurement is
age? - 🔰CORRECT ANSWERS ✔✔Ratio
What level of measurement is a person's "favorite sport"? - 🔰
CORRECT ANSWERS ✔✔Nominal
The final rankings of the top 20 NCAA college basketball teams are
an example of which level of measurement? - 🔰CORRECT
ANSWERS ✔✔Ordinal
What level of measurement is the Centigrade temperature scale? -
🔰CORRECT ANSWERS ✔✔Interval
A survey includes a question regarding marital status that has the
following responses: single, married, divorced, separated, or
widowed. What is the scale of measurement for this question? - 🔰
CORRECT ANSWERS ✔✔Nominal
A group of women tried five brands of fingernail polish and ranked
them according to preference. What level of measurement is this? -
🔰CORRECT ANSWERS ✔✔Ordinal
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,Shoe style is an example of what level of measurement? - 🔰
CORRECT ANSWERS ✔✔Nominal
When TV advertisements report "2 out of 3 dentists surveyed
indicated they would recommend Brand X toothpaste to their
patients," an informed consumer may question the conclusion
because the: - 🔰CORRECT ANSWERS ✔✔Advertisement does
not include the total number of dentists surveyed
A sample of the paramedical fees charged by clinics revealed these
amounts: $55, $49, $50, $45, $52, and $55. What is the median
charge? - 🔰CORRECT ANSWERS ✔✔51.00
For a data set with an odd number of observations that have been
sorted from smallest to largest values, where is the median located?
- 🔰CORRECT ANSWERS ✔✔(n + 1)/2
Assume a student received the following grades for the semester:
History, B; Statistics, A; Spanish, C; and English, C. History and
English are 5 credit-hour courses, Statistics a 4 credit-hour course,
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, and Spanish a 3 credit-hour course. If 4 grade points are assigned
for an A, 3 for a B, and 2 for a C, what is the weighted mean grade
for the semester? - 🔰CORRECT ANSWERS ✔✔2.76
A disadvantage of using an arithmetic mean to summarize a set of
data is that __________. - 🔰CORRECT ANSWERS ✔✔It can be
biased by one or two extremely small or large values
A survey item asked students to indicate their class in college:
freshman, sophomore, junior, or senior. Which measure(s) of
central location would be appropriate for the data generated by that
questionnaire item? - 🔰CORRECT ANSWERS ✔✔Mode and
median
The times (in minutes) that several underwriters took to review
applications for similar insurance coverage are 50, 230, 52, and 57.
What is the median length of time required to review an
application? - 🔰CORRECT ANSWERS ✔✔54.5
For the most recent seven years, the U.S. Department of Education
reported the following number of bachelor's degrees awarded in
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64
correct answers
The main purpose of descriptive statistics is to - 🔰CORRECT
ANSWERS ✔✔Summarize data in a useful and informative
manner
Which word is NOT part of the definition of descriptive statistics? -
🔰CORRECT ANSWERS ✔✔Predicting
A marketing class of 50 students evaluated the instructor using the
following scale: superior, good, average, poor, and inferior. The
descriptive summary showed the following survey results: 2%
superior, 8% good, 45% average, 45% poor, and 0% inferior. - 🔰
CORRECT ANSWERS ✔✔c. Most students rated the instructor as
poor or average.
What type of variable is the number of robberies reported in your
city? - 🔰CORRECT ANSWERS ✔✔Quantitative
The Nielsen Ratings break down the number of people watching a
1 \\\\\\/ \\\\\\
64
,particular television show by age. What level of measurement is
age? - 🔰CORRECT ANSWERS ✔✔Ratio
What level of measurement is a person's "favorite sport"? - 🔰
CORRECT ANSWERS ✔✔Nominal
The final rankings of the top 20 NCAA college basketball teams are
an example of which level of measurement? - 🔰CORRECT
ANSWERS ✔✔Ordinal
What level of measurement is the Centigrade temperature scale? -
🔰CORRECT ANSWERS ✔✔Interval
A survey includes a question regarding marital status that has the
following responses: single, married, divorced, separated, or
widowed. What is the scale of measurement for this question? - 🔰
CORRECT ANSWERS ✔✔Nominal
A group of women tried five brands of fingernail polish and ranked
them according to preference. What level of measurement is this? -
🔰CORRECT ANSWERS ✔✔Ordinal
2 \\\\\\/ \\\\\\
64
,Shoe style is an example of what level of measurement? - 🔰
CORRECT ANSWERS ✔✔Nominal
When TV advertisements report "2 out of 3 dentists surveyed
indicated they would recommend Brand X toothpaste to their
patients," an informed consumer may question the conclusion
because the: - 🔰CORRECT ANSWERS ✔✔Advertisement does
not include the total number of dentists surveyed
A sample of the paramedical fees charged by clinics revealed these
amounts: $55, $49, $50, $45, $52, and $55. What is the median
charge? - 🔰CORRECT ANSWERS ✔✔51.00
For a data set with an odd number of observations that have been
sorted from smallest to largest values, where is the median located?
- 🔰CORRECT ANSWERS ✔✔(n + 1)/2
Assume a student received the following grades for the semester:
History, B; Statistics, A; Spanish, C; and English, C. History and
English are 5 credit-hour courses, Statistics a 4 credit-hour course,
3 \\\\\\/ \\\\\\
64
, and Spanish a 3 credit-hour course. If 4 grade points are assigned
for an A, 3 for a B, and 2 for a C, what is the weighted mean grade
for the semester? - 🔰CORRECT ANSWERS ✔✔2.76
A disadvantage of using an arithmetic mean to summarize a set of
data is that __________. - 🔰CORRECT ANSWERS ✔✔It can be
biased by one or two extremely small or large values
A survey item asked students to indicate their class in college:
freshman, sophomore, junior, or senior. Which measure(s) of
central location would be appropriate for the data generated by that
questionnaire item? - 🔰CORRECT ANSWERS ✔✔Mode and
median
The times (in minutes) that several underwriters took to review
applications for similar insurance coverage are 50, 230, 52, and 57.
What is the median length of time required to review an
application? - 🔰CORRECT ANSWERS ✔✔54.5
For the most recent seven years, the U.S. Department of Education
reported the following number of bachelor's degrees awarded in
4 \\\\\\/ \\\\\\
64
