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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 Introductory Statistics 2e, 7.3 Using the Central Limit Theorem, exercise 43

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Adapted from Introductory Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Statistics 2e. Imported at revision 50ec917.