Into to Statistics Jeopardy

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Into to Statistics Jeopardy
Experimental Design
Sampling
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Credits
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Sampling - 100

49, 34, and 48 students are selected from the
sophomore, Junior, and Senior classes with 496,
348, and 481 students respectively a.)
Stratified b.) Random c.) Cluster d.)
Systematic e.) Convenience
Answer
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Sampling - 200
A sample consists of every 49th student from a
group of 496 students. a.) Stratified b.)
Random c.) Cluster d.) Systematic e.)
Convenience
Answer
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Sampling - 300
A pollster uses a computer to generate 500 random
numbers, then interviews the voters corresponding
to those numbers a.) random b.)
convenience c.) cluster d.) systematic e.)
stratified
Answer
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Sampling - 400
To avoid working late, a quality control analyst
simply inspects the first 100 items produced.
This is what type of sample? a.) random b.)
convenience c.) cluster d.) systematic e.)
stratified
Answer
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Sampling - 500
The name of each contestant is written on a
separate card, the cards are placed in a bag, and
three names are picked from the bag. a.)
random b.) convenience c.) systematic d.)
cluster e.) stratified
Answer
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Sampling - 600
An education researcher randomly selects 48
middle schools and interviews all the teachers at
each school a.) random b.) cluster c.)
systematic d.) convenience e.) stratified
Answer
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Sampling - 100 Answer
49, 34, and 48 students are selected from the
sophomore, Junior, and Senior classes with 496,
348, and 481 students respectively a.)
Stratified Students were first divided up by
class (strata), then selected at random
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Sampling - 200 Answer
A sample consists of every 49th student from a
group of 496 students. d.) Systematic The
49th position was randomly selected, the
systematic is that each 49th position then
becomes part of the sample
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Sampling - 300 Answer
A pollster uses a computer to generate 500 random
numbers, then interviews the voters corresponding
to those numbers a.) random Every individual
in the population had an equally-likely chance of
being chosen and every sample of size 500 had an
equally-likely chance of being chosen
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Sampling - 400 Answer
To avoid working late, a quality control analyst
simply inspects the first 100 items produced.
This is what type of sample? b.)
convenience The first 100 were convenient to the
control analyst
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Sampling - 500 Answer
The name of each contestant is written on a
separate card, the cards are placed in a bag, and
three names are picked from the bag. a.)
random Each contestant has an equally-likely
chance of being chosen and each sample of size
three has an equally likely chance of being chosen
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Sampling - 600 Answer
An education researcher randomly selects 48
middle schools and interviews all the teachers at
each school b.) cluster All the teachers in
each randomly chosen school are interviewed(the
schools are natural groups within the population)
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Experimental Design - 100
Determine whether the following is an
observational study or an experiment
A marketing firm does a survey to find out how
many people use a product. Of the one hundred
people contacted, fifteen said they use the
product.
a.) Observational b.) Experiment
Answer
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Experimental Design - 200
Determine whether the following is an experiment
or an observational study
A clinic gives a drug to a group of ten patients
and a placebo to another group of ten patients to
find out if the drug has an effect on the
patients illness.
a.) Observational b.) Experiment
Answer
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Experimental Design - 300
Which of the following is not a major principle
of experimental design?
a.) randomization b.) replication c.)
blocking d.) control e.) all of these are
important principles
Answer
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Probability Distn - 400
In order to assess the effects of diet on
reducing cholesterol, a researcher randomly
assigned 50 people to diet A and fifty people to
diet B. They all reported to a clinic to have
their cholesterol measured. The subjects were
unaware of which diet they were using, and the
technician measuring the cholesterol was not
aware of which diet the participants had used.
This is a(n)
a.) observational study b.) experiment, but not
a double blind experiment c.) double blind
experiment d.) matched pairs experiment e.)
block design
Answer
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Probability Distn - 500
An experiment was conducted by some students to
explore the nature of the relationship between a
person's heart rate (measured in beats per
minute) and the frequency at which that person
stepped up and down on steps of various heights.
Three rates of stepping and two different step
heights were used. A subject performed the
activity (stepping at one of the three stepping
rates at one of the two possible heights) for
three minutes. Heart rate was then measured at
the end of this period. The variables "stepping
rate" and "step height" are the a.)
factors b.) levels c.) controls d.)
units e.) response variables
Answer
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Experimental Design - 600
A study to see the effects of caffeine on college
student was conducted. Students in 2 class times
were part of the study. Suppose half of the 830
students are randomly allocated to the treatment
group (two cups of coffee), the other half to the
control group (two cups of decaf). In addition,
half of the 930 students are randomly allocated
to the treatment group, the other half to the
control group. This is an example of a
A) voluntary response study. B) stratified
sampling procedure. C) matched pairs
design. D) completely randomized design.
E) block design.
Answer
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Exp. Design - 100 Ans.
Determine whether the following is an
observational study or an experiment
A marketing firm does a survey to find out how
many people use a product. Of the one hundred
people contacted, fifteen said they use the
product.
a.) Observational No treatment was imposed
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Exp Design - 200 Ans.
Determine whether the following is an experiment
or an observational study
A clinic gives a drug to a group of ten patients
and a placebo to another group of ten patients to
find out if the drug has an effect on the
patients illness.
b.) Experiment The patients were given
either a drug or placebo then the effects were
measured
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Exp. Design - 300 Ans.
Which of the following is not a major principle
of experimental design?
e.) all of these are important principles
The four principles of design are control,
randomization, replication, and blocking
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Exp Design - 400 Ans.
In order to assess the effects of diet on
reducing cholesterol, a researcher randomly
assigned 50 people to diet A and fifty people to
diet B. They all reported to a clinic to have
their cholesterol measured. The subjects were
unaware of which diet they were using, and the
technician measuring the cholesterol was not
aware of which diet the participants had used.
This is a(n)
c.) double blind experiment
A treatment was applied (the two diets)and
neither the subjects nor the technician knew
which diet (group) the subjects were in.
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Exp. Design - 500 Ans.
An experiment was conducted by some students to
explore the nature of the relationship between a
person's heart rate (measured in beats per
minute) and the frequency at which that person
stepped up and down on steps of various heights.
Three rates of stepping and two different step
heights were used. A subject performed the
activity (stepping at one of the three stepping
rates at one of the two possible heights) for
three minutes. Heart rate was then measured at
the end of this period. The variables "stepping
rate" and "step height" are the a.) factors
The variables stepping rate and step height
are factors. Stepping rate has 3 levels and
step height has 2 levels. This means that
there are 6 possible treatments.
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Exp. Desigh - 600 Ans.
A study to see the effects of caffeine on college
student was conducted. Students in 2 class times
were part of the study. Suppose half of the 830
students are randomly allocated to the treatment
group (two cups of coffee), the other half to the
control group (two cups of decaf). In addition,
half of the 930 students are randomly allocated
to the treatment group, the other half to the
control group. This is an example of a
E) block design. Students are blocked by
time of class (a variable that may affect the
response variable) and then randomly assigned to
the treatment or control group
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Credits
Questions have come from the Test Bank for Basic
Practice of Statistics And Essentials of
Statistics