MATH 221 Week 1 Homework: Statistics for Decision-Making (LATEST UPDATE v1) | 100% Correct asnswers)
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Course
MATH 221
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DeVry University, Chicago
Question: In a survey of 1000 adults, 34% found they prefer charcoal to gas grills. The 34% would … considered a: Question: In a survey of 1000 adults, 34% found they prefer charcoal to gas grills. The 1000 would … considered a: Question: The chances of winning the Maryland lottery are one chan...
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math 221 week 1 homework
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MATH 221 Week 1 Homework: Statistics for Decision-Making
Question 1
In a survey of 1000 adults, 34% found they prefer charcoal to gas grills. The 34% would be
considered a:
Parameter
Population
Correct!
Statistic
Sample
The average age of all employees at a local store would be considered a:
Statistic
Correct Answer
Parameter
Population
Sample
In a survey of 1000 adults, 34% found they prefer charcoal to gas grills. The 1000
would be considered a:
Statistic
Parameter
Population
Correct!
Sample
A survey of 1050 students was taken from a university with 19,500
students. The 19,500 would be considered a:
Sample
Statistic
Parameter
Correct Answer
Population
,Question 2
A recent survey of the alumni of a university indicated that the average salary of 10,000 of its
200,000 graduates was $130,000. The 10,000 would be considered a:
Correct!
Sample
Statistic
Population
Parameter
A recent survey of the alumni of a university indicated that the average salary of 10,000
of its 200,000 graduates was $130,000. The $130,000 would be considered a:
Population
Parameter
Correct Answer
Statistic
Sample
Based on past experience, it is predicted that 31% of registered voters in
Oklahoma will vote in the next primary. The 31% would be considered an
example of:
Qualitative data
Descriptive statistics
A sample
Correct Answer
Inferential statistics
Question 3
The chances of winning the Maryland lottery are one chance in twenty-two million. The
probability would be considered an example of:
A sample
Experiment design
Correct Answer
, Descriptive statistics
Inferential statistics
Inferential statistics is when sample data is used to:
Calculate a mean
Say something about the population
Influence a decision maker
Determine when an event is most likely to occur
Question 4
The ages of 20 first graders would be considered:
Interval data
Qualitative data
Nominal data
Correct!
Quantitative data
If a data set included the color of cars in a parking lot, those data would be considered:
Ratio data
Correct!
Qualitative data
Interval data
Quantitative data
The hair color of the players on a tennis team would be considered:
Ordinal data
Ratio data
Interval data
Correct!
Nominal data
Question 5
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