Exam (elaborations)

MAT 110 Statistics

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MAT 110 Statistics

Institution
MAT 110 Statistics

1. What are the two main branches of statistics? 2. A statistic is a measure that de- scribes a population characteristic. Descriptive statistics and inferential statistics False. A statistic is a measure that describes a sample characteristic 3. How is a sample related to a populaA- tion?...

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1 what are the two main branches of statistics 2 a statistic is a measure that de scribes a population characteristic descriptive statistics and inferential statistics false a statistic is a m

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MAT 110 Statistics
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MAT 110 Statistics
Course
MAT 110 Statistics

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MAT 110 Statistics
Study online at
https://quizlet.com/_5xzpq0
1. What are the two main branches
Descriptive statistics and
of statistics?
inferential statistics
2. A statistic is a measure that de-
False. A statistic is a measure
scribes a population
that describes a sample
characteristic.
characteristic

3. How is a sample related to a sample is a subset of a
population.
populaA- tion?

4. What is the difference between a A parameter is a numerical
pa- rameter and a statistic? descrip- tion of a population
characteristic. A statistic is a
numerical description of a
sample characteristic.
5. A population is the collection of
False. A population is th
collection
some outcomes, responses, mea-of all outcomes, responses,mea
surements, or counts that are of in- The salaries of 5 baseball
terest. players on a team of 25

6. Why is a sample used more 10.Venn diagram: The ages of
often than a population? home- owners in a certain
country box with
7. A sample statistic will not change
from sample to sample.

8. Determine whether the data set is a
population or a sample. Explain
your reasoning.
The salary of each teacher in a
school.

9. Determine whether the data set is a
population or a sample. Explain
your reasoning.
1/

, MAT 110 Statistics
Study online at
https://quizlet.com/_5xzpq0
surements, or counts that are of
in- terest.

It is usually impossible to count
the entire population.

The statement is false. A sample
statistic can change from sample
to sample.

Population, because it is a collec-
tion of salaries for all teachers in
the school.

Sample, because the collection of
salaries for 5 baseball players is a
subset of all baseball players on
the team.

Population: The ages of home
own- ers in the country.

2/

, MAT 110 Statistics
Study online at
https://quizlet.com/_5xzpq0
blue box inside with the ages of home Sample: The ages of home
owners in
owners in the country who have the country who have a mortgage
a mortgage.

11.A survey of 12,076 adults in a Population: The immunization
particu- status
lar country found that 47.8 % receiveodf all adults in the country.
an influenza vaccine for a recent Sample: The immunization status
flu season. Identify the population of the 12,076 adults selected.
and the sample.

12. A quality-control manager random-Population: All bottles of vinegar
pro-
ly selects 30 bottles of vinegar that duced in the plant on August
were filled on August 15 to assess 15. Sample: The 30 bottles of
the calibration of the filling vinegar selected in the plant
machine. on August 15.

13. A survey of third- to twelfth-gradePopulation: The time spent per
day
students with a sample size of 2007 rea- soning.
found that they devoted an average A survey of 2207 adults in a
of 2 hours and 24 minutes per day coun-
to using entertainment media.
Identify the population and the
sample.

14.Determine whether the underlined
value is a parameter or a statistic.
Upper A study of 6 comma 076
adults in public rest rooms found
that Modi- fying 23 % (23% is
underlined) did not wash their
hands before exiting.

15.Determine whether the number de-
scribes a population parameter or
a sample statistic. Explain your
3/

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Exam (elaborations)

MAT 110 Statistics

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