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Back to 7.3 Using the Central Limit Theorem

7.3 Exercise 43

Avg difficulty 2.5

Use the following information to answer the next two exercises: The time to wait for a particular rural bus is distributed uniformly from zero to 75 minutes. One hundred riders are randomly sampled to learn how long they waited.

The 90th percentile sample average wait time (in minutes) for a sample of 100 riders is:

  1. 315.0
  2. 40.3
  3. 38.5
  4. 65.2

OpenStax Statistics, 7.3 Using the Central Limit Theorem, exercise 43

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Adapted from Statistics © 2022 Rice University. Licensed under CC BY 4.0. Source: Statistics. Imported at revision 7dea80a.