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MMLU-Pro / 8441 / An experiment is conducted in which the response variable is the average gain in…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

An experiment is conducted in which the response variable is the average gain in participants' performance in the long jump. A two-sample t-test with a 5% level of significance will be used to analyze the results. If all else is kept the same, which of the following descriptions of a possible change in procedure is true?

category

math

options

  1. Taking more careful measurements to reduce variability in the response would increase the power of the test.
  2. Change from equal size treatment groups to very different size treatment groups would increase the power of the test.
  3. Increasing the sample size would reduce the probability of a Type I error.
  4. Change from a 5% significance level to a 1% significance level would increase the power of the test.
  5. Changing from a two-sample t-test to a one-sample t-test would increase the power of the test.
  6. Reducing the size of the treatment groups would increase the power of the test.
  7. Increasing the variability in the response would increase the power of the test.
  8. Changing the response variable to the median gain in performance would increase the power of the test.
  9. Decreasing the sample size would increase the power of the test.

src

ori_mmlu-high_school_statistics

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Source and history

upstream_id / Original problem ID
8441
task_id
2b1f1a78-3f84-56d5-933f-9c8f10efa9a5
task_key
default--test--8441
task_revision_id
1
config / split
default / test

Official source

initial import