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A survey investigates whether residents of a certain city support an educational tax increase. Which ...

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A survey investigates whether residents of a certain city support an educational tax increase. Which ...

A survey investigates whether residents of a certain city support an educational tax increase. Which of the following statements are true?

▸ The proportions of "Yes" in many samples of size n will be approximately normally distributed with mean = p and standard deviation equal to the square root of p*(1-p)/n.

▸ The proportion of "Yes" in one sample of size n will be close to p if the Central Limit Theorem conditions are satisfied.

▸ The true proportion of "Yes" in the population is p.

▸ All of these statements are true.

Textbook

Introductory Statistics: Exploring the World Through Data

Edition: 2^nd

Authors: Gould, Ryan

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