Question 8.64

8.64 Significance test details for tipping

Refer to the previous exercise.

  1. Find the test statistic.
  2. What is the distribution of the test statistic if the null hypothesis is true?
  3. Find the -value.
  4. Use a sketch of a Normal distribution to explain the interpretation of the -value that you found in part (c).

    450

  5. Write a brief summary of the results of your significance test. Include enough details so that someone reading your summary could reproduce all your results.