How does the choice of significance level (α) affect the conclusion of a Chi-square test for goodness of fit?

  • A higher α makes it easier to reject the null hypothesis
  • A higher α makes it harder to reject the null hypothesis
  • α has no impact on the conclusion of the test
  • α only affects the power of the test, not the conclusion
A higher significance level (α) increases the likelihood of rejecting the null hypothesis. This is because you're setting a higher bar for the amount of evidence needed to retain the null hypothesis.
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