100 200 300 400 experimentsmisc ap statistics jeopardy sampling 500 600 100 200 300 400 500 600 100...
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Experiments Misc
AP Statistics JeopardySampling
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Sampling - 100
Answer
A marketing company offers to pay $25 to the first 100 persons who respond to their advertisement and complete a questionnaire regarding displays of their client’s product. This situation is an example of which of the following?
a.) simple random sample
b.) convenience sample
c.) voluntary response sample
d.) multistage cluster sample
e.) None of these
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Sampling - 200
Answer
A simple random sample was selected of large urban school districts throughout New England. The selected districts were identified as target districts. Within each district, a simple random sample of its high schools was chosen and the principals of those high schools was chosen and the principals of those high schools were interviewed. Which of the following statements regarding this design is not true.
a.) This is an example of a multi-stage cluster sample
b.) Results from the interviews cannot be used to infer responses of the population of interest
c.) The population of interest is the set of all high school principals in New England
d.) Not every subset of principals has the same chance of selection
e.) All of these statements are true.
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Sampling - 300
Answer
The student council of your high school wants to conduct a survey regarding the dress code for school dances. You have advised them that it might be best to conduct a stratified random sample of the student body. Which of the following is not a valid stratified design? Assume the result of the separate samples will be combined into a single sample of the student body.
a.) Two simple random samples are to be conducted: one of the boys in the student body and the other of the girls in the student body.
b.) Four simple random samples are conducted: one in each of the four classes
c.) Two simple random samples are conducted in randomly selected homerooms: one of the boys in the selected homerooms and the other of the girls in the selected homerooms.
d.) Twoo random samples are conducted: one of students whose GPA’s are 2.5 or higher and the other of students whose GPA’s are less than 2.5
e.) None of these statements is a valid design
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Sampling - 400
Answer
Use the following excerpt from a random digit table:21052 65031 45074 92846 67815 78231 0154821053 56410 82713
Which of the following statements regarding this excerpt of the given random digit table is true?
a.) this table can only be used for data coded with five-digit numbersb.) In order to use this table for a population of 100 names, the names could
be coded 00-99; the random two-digit numbers would be selected to identify chosen names
c.) It is critical to begin the selection of random digits at the beginning of the list
d.) This table can only be used if the data labels include all of the digits in the table.
e.) None of these statements are true.
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Sampling - 500
Answer
If the personnel director at a large company wanted to study the eating habits of employees at lunchtime and includes only the employees in one department in her study, she is performing a
a.) simple random sample
b.) quota sample
c.) convenience sample
d.) multi-stage cluster sample
e.) census
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Sampling - 600
Answer
Which of the following is not a valid sample design?
a.) Code every member of a population and select 100 randomly chosen members.
b.) Divide a population by gender and select 50 individuals randomly from each group.
c.) Select individuals randomly and place into gender groups until you have the same proportion in the groups as in the population.
d.) Select five homerooms at random from all of the homerooms in a large high school
e.) All of these are valid
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Sampling - 100 Answer
c.) voluntary response sample
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Sampling - 200 Answer
Answer: b.) Results from the interviews cannot be used to infer responses of the population of interest
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Sampling - 300 Answer
C: This is a multi-stage sample
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Sampling - 400 Answer
b.) In order to use this table for a population of 100 names, the names could be coded 00-99; the random two-digit numbers would be selected to identify chosen names
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Sampling - 500 Answer
c.) a convenience sample
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Sampling - 600 Answer
e.) all of these are valid
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Experiments - 100
Answer
Which one of the following statements about experiments is true?
a.) All experiments must have a control group.
b.) Blocking is employed to reduce variation
c.) Random assignment is only critical for treatment groups, as opposed to control groups
d.) Matching can be used in any experiment to eliminate lurking variables.
e.) None of these is true.
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Experiments - 200
Answer
In an experiment, if two variables are confounded, which of the following statements is true?
a.) One of the variables must be a lurking variable.
b.) The variables will have a correlation coefficient greater than ± .5
c.) There is a clear indication that a placebo effect is present in the experiment
d.) The investigator cannot separate the effect of the variables on a response variable.
e.) None of these is true.
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Experiments - 300
Answer
Blocking is utilized to help
a.) organize the treatment and control groups
b.) counteract the placebo effect
c.) produce groups that are as similar as possible
d.) replicate the experiment within each block
e.) avoid the need for randomization
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Experiments - 400
Answer
A randomized block design is similar to which of the following sampling designs?
a.) simple random sample
b.) multi-stage sample
c.) stratified sample
d.) convenience sample
e.) systematic sample
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Experiments - 500
Answer
You have been given the task of determining if right-handed persons have stronger right hands than left hands. A sample of 10 right-handed persons is selected randomly. Which of the following designs would be most appropriate for this study?a.) an observational studyb.) a design blocked for gender to determine if right-handed strength differs by genderc.) a repeated measures (matched pair where individual serves as their own control) experiment in which each subject represents a block wherein the strength of the right hand and the left hand is measured in random order.d.) five of the subjects are randomly placed in the control group and the other in the treatment group. All are tested and the results of each group are compared.e.) None of these is appropriate
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Experiments - 600
Answer
A randomized block design is not
a.) similar to a stratified random sample for surveys
b.) a strategy to control for an influence that would affect the outcome of the experiment
c.) a strategy that depends on randomization
d.) only used for gender comparisons
e.) all of these describe a randomized block design.
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Experiments - 100 Answer
b.) blocking is employed to reduce variation
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Experiments - 200 Answer
d.) The investigator cannot separate the effect of the variables on a response variable.
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Experiments - 300 Answer
c.) produce groups that are as similar as possible
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Experiments - 400 Answer
c.) stratified sample
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Experiments - 500 Answer
c.) a repeated measures (matched pair where individual serves as their own control) experiment in which each subject represents a block wherein the strength of the right hand and the left hand is measured in random order.
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Experiments - 600 Answer
d.) only used for gender comparisons
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Miscellaneous - 100
Answer
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Miscellaneous - 200
Answer
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Miscellaneous - 300
Answer
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Miscellaneous - 400
Answer
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Miscellaneous - 500
Answer
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Miscellaneous - 600
Answer
The four principles of experimental design include:
a.) Control, randomization, replication, and double-blindnessb.) Control, randomization, replication, and blockingc.) Control, replication, blocking, and simple random samplingd.) Control randomization, replication, and homogeneity.
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Miscellaneous - 100 Answer
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Miscellaneous - 200 Answer
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Miscellaneous - 300 Answer
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Miscellaneous - 400 Answer
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Miscellaneous - 500 Answer
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Miscellaneous - 600 AnswerThe four principles of experimental design include:
a.) Control, randomization, replication, and double-blindness
b.) Control, randomization, replication, and blockingc.) Control, replication, blocking, and simple random
samplingd.) Control randomization, replication, and homogeneity.
Answer: b.) control, randomization, replication, and blocking
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CreditsCredits
All of these questions have come from either the Test Bank for
Yates, Moore, and Starnes’sThe Practice of Statistics, 2e
By Michael A. Flinger and William I. NotzOr Amsco’s AP Statistics
James F. Bohan