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Back to 8.3 A Population Proportion

8.3 Exercise 6

Avg difficulty 2.5

A random sample of 25 statistics students was asked: “Have you smoked a cigarette in the past week?” Six students reported smoking within the past week. Use the “plus-four” method to find a 95% confidence interval for the true proportion of statistics students who smoke.

OpenStax Introductory Statistics 2e, 8.3 A Population Proportion, exercise 6

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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.