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Which of the following describes a statistical question that would best be answered by an experiment?(1 point)
Responses
What is the most popular attraction at a local park?
What is the most popular attraction at a local park?
What is the median salary for alumni from a certain school?
What is the median salary for alumni from a certain school?
What is the effect of last-minute studying before an exam?
What is the effect of last-minute studying before an exam?
What is the busiest hour for the local cinema?
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What is the effect of last-minute studying before an exam?
Reason: experiments are used to test causal effects by manipulating a variable (e.g., assigning students to last-minute study vs. no last-minute study with random assignment and controls). The other questions are descriptive and answered by observational data.
Reason: experiments are used to test causal effects by manipulating a variable (e.g., assigning students to last-minute study vs. no last-minute study with random assignment and controls). The other questions are descriptive and answered by observational data.
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