1. Determine whether the underlined value is a parameter or a statistic. The ave
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Question
1. Determine whether the underlined value is a parameter or a statistic.
The average age of men who had walked on the moon was 39 years, 11 months, 15 days.
Is the value a parameter or a statistic?
MULTIPLE CHOICE
A. The value is a parameter because the men who had walked on the moon are a population.
B. The value is a parameter because the men who had walked on the moon are a sample.
C. The value is a statistic because the men who had walked on the moon are a sample.
D. The value is a statistic because the men who had walked on the moon are a population.
2. Determine whether the variable is qualitative or quantitative.
Amount of money spent on computers this year
is the variable qualitative or quantitative?
MULTIPLE CHOICE
A. The variable is quantitative because it is an attribute characteristic.
quantitative
B. The variable is qualitative because it is an attribute characteristic.
C. The variable is quantitative because it is a numerical measure.
D. The variable is qualitative because it is a numerical measure.
3. Determine the level of measurement of the variable.
Height of a child:27 in, 28 in, 29 in, 30 in, and 31 in
MULTIPLE CHOICE
A. Interval
B. Ordinal
C. Ratio
D. Nominal
4. A quality-control manager randomly selects 40 bottles of soda that were filled on March 21 to assess the calibration of the filling machine.
MULTIPLE CHOICE
What is the population in the study?
A. The 40 bottles of soda selected in the plant on March 21.
B. Bottles of soda produced in the plant.
C. The 40 bottles of soda selected in the plant.
D. Bottles of soda produced in the plant on March 21.
What is the sample in the study?
A. The 40 bottles of soda selected in the plant in March.
B. Bottles of soda produced in the plant.
C. Bottles of soda produced in the plant on March 21.
D. The 40 bottles of soda selected in the plant on March 21.
5. What does it mean when an observational study is retrospective? What does it mean when an observational study is prospective?
What does it mean when an observational study is retrospective?
MULTIPLE CHOICE
A. A retrospective study requires that individuals look back in time or require the researcher to look at existing records.
B. A retrospective study collects the data over time.
C. An retrospective study is a list of all individuals in a population along with certain characteristics of each individual.
What does it mean when an observational study is prospective?
A. A prospective study collects the data over time.
B. An prospective study is a list of all individuals in a population along with certain characteristics of each individual.
C. A prospective study requires that individuals look back in time or require the researcher to look at existing records.
Explanation / Answer
Q1) Option A is Correct. The value is a parameter because the men who had walked on the moon are a population
Q2) Option C is Correct. The variable is quantitative because it is a numerical measure.
Q3) Option C is Correct. Ratio
Q4) Option D is Correct. Bottles of soda produced in the plant on March 21.
Option D is Correct. The 40 bottles of soda selected in the plant on March 21.
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