Understanding Null Hypothesis

Understanding Null Hypothesis#

Part 1#

Assume the null hypothesis states that the mean is at most $\({{params.int1}}\)$. Is this a left-tailed, right-tailed, or two-tailed test?

Answer Section#

  • left-tailed test

  • right-tailed test

  • two-tailed test

Part 2#

Assume the null hypothesis states that the mean is equal to 88. The alternative hypothesis states that the mean is less than 88. Is this a left-tailed, right-tailed, or two-tailed test?

Answer Section#

  • left-tailed test

  • right-tailed test

  • two-tailed test

Attribution#

Problem is from the OpenStax Introductory Statistics 2e textbook, licensed under the CC-BY 4.0 license.
Image representing the Creative Commons 4.0 BY license.