A psychologist conducts an investigation with the aim of estimating the proportion of Canadians over 30 who are single. By taking a sample of 1,100 Canadians from over 30, she finds 260 who are single. a) Construct a confidence interval at the level of 95% confidence in estimating the proportion of Canadians over 30 who are single. b) What sample size should we reach if we wants to obtain a margin of error of 1% with a level of 95% confidence?

A psychologist conducts an investigation with the aim of estimating the proportion of Canadians over 30 who are single. By taking a sample of 1,100 Canadians from over 30, she finds 260 who are single. a) Construct a confidence interval at the level of 95% confidence in estimating the proportion of Canadians over 30 who are single. b) What sample size should we reach if we wants to obtain a margin of error of 1% with a level of 95% confidence?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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