40. A 90% confidence interval is to be created to estimate the proportion of television viewers in acertain area who favor among the broadcast of the late weeknight news to an hour earlier than itis currently. Initially, the confidence interval will be created using a simple random sample of9,000 viewers in the area. Assuming that the sample proportion does not change, what would bethe relationship between the width of the original confidence interval and the width of a second90% confidence interval that is created based on a sample of only 1,000 viewers in the area?The second confidence interval would be 1/3 times as wide as the original confidence interval.The second confidence interval would be 9 times as wide as the original confidence interval.The second confidence interval would be 1/9 times as wide as the original confidence interval.The second confidence interval would be 3 times as wide as the original confidence interval.

Solution:- Confidence interval P^±Zα2p^q^n Where P^ is sample proportion q^=1-p^ and n is sample…

Answered: 40. A 90% confidence interval is to be…

FINANCIAL ACCOUNTING

10th Edition

ISBN:9781259964947

Author:Libby

Publisher:Libby

Chapter1: Financial Statements And Business Decisions

Section: Chapter Questions

Problem 1Q

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