AI Tutor
Back to Inference for categorical data

Exercise 15

Avg difficulty 3.0

National Health Plan, Part II. Exercise 6.11 presents the results of a poll evaluating support for a generic “National Health Plan” in the US in 2019, reporting that 55% of Independents are supportive. If we wanted to estimate this number to within 1% with 90% confidence, what would be an appropriate sample size?

Diez, Barr & Çetinkaya-Rundel, OpenIntro Statistics, Inference for categorical data, End-of-Chapter Exercises, Exercise 15

AI Tutor

Adapted from OpenIntro Statistics © 2019 David Diez, Mine Çetinkaya-Rundel & Christopher D. Barr. Licensed under CC BY-SA 3.0. Source: OpenIntro Statistics. Imported at revision fee2509.