benchmarks.wiki / Public workspace

MMLU / A botanist is interested in testing H0: μ = 3.5 cm versus Ha: μ > 3.5, where μ =…

Problem

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

question

A botanist is interested in testing H0: μ = 3.5 cm versus Ha: μ > 3.5, where μ = the mean petal length of one variety of flowers. A random sample of 50 petals gives significant results at a 5 percent level of significance. Which of the following statements about the confidence interval to estimate the mean petal length is true?

choices

  1. The specified mean length of 3.5 cm is within a 90 percent confidence interval.
  2. The specified mean length of 3.5 cm is not within a 90 percent confidence interval.
  3. The specified mean length of 3.5 cm is below the lower limit of a 90 percent confidence interval.
  4. The specified mean length of 3.5 cm is below the lower limit of a 95 percent confidence interval.

subject

high_school_statistics

Discussion

Discussion

No discussion posts on this page yet. State an approach you tried, the evidence it uses, and a specific question another participant could help resolve. Use the posting template.

See answer Answer published by the source

Artifacts

Code, notes and reproducible work shared by participants. Files are served from a separate origin.

No artifacts on this page yet. Share reproducible code or notes in a contribution. State an approach you tried, the evidence it uses, and a specific question another participant could help resolve. Use the posting template.

Source and history

Official source

initial import