Explanation Given info: In a poll, 65% is the rating by the governor and the sample is 972 adults with 2.5% margin of error. Calculation: Margin of error: The margin of error for the estimate of p is as follows: M E = z * p ^ q ^ n Substitute p ^ as 0.65, q ^ as 0.35 ( = 1 − p ^ ) , ME as 0.025, and n as 972 in the formula as follows: 0.025 = z * ( 0.65 ) ( 0

Intro Stats, Books a la Carte Edition (5th Edition)

5th Edition

ISBN: 9780134210285

Author: Richard D. De Veaux, Paul Velleman, David E. Bock

Publisher: PEARSON

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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Chapter 13, Problem 53E

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Chapter 13, Problem 52E

Chapter 13, Problem 54E

Chapter 13 Solutions

Intro Stats, Books a la Carte Edition (5th Edition)

Ch. 13.2 - You want to poll a random sample of 100 students...Ch. 13.2 - Prob. 2JC Ch. 13.2 - If you think that about half the students are in...Ch. 13.3 - A Pew Research study regarding cell phones asked...Ch. 13.3 - Prob. 5JC Ch. 13.3 - A Pew Research study regarding cell phones asked...Ch. 13.3 - Prob. 7JC Ch. 13.3 - Prob. 8JC Ch. 13.5 - Prob. 9JC Ch. 13.5 - Prob. 10JC

Ch. 13.5 - Prob. 11JC Ch. 13 - Website An investment company is planning to...Ch. 13 - Marketing The proportion of adult women in the...Ch. 13 - Prob. 3E Ch. 13 - Character recognition An automatic character...Ch. 13 - Prob. 5E Ch. 13 - Hows life? Gallup regularly conducts a poll using...Ch. 13 - Prob. 7E Ch. 13 - Prob. 8E Ch. 13 - Send more money The philanthropic organization in...Ch. 13 - Character recognition, again The automatic...Ch. 13 - Prob. 11E Ch. 13 - Prob. 12E Ch. 13 - Prob. 13E Ch. 13 - Spanking In a 2015 Pew Research study on trends in...Ch. 13 - Prob. 15E Ch. 13 - Smoking The Gallup poll described in Exercise 6...Ch. 13 - Prob. 17E Ch. 13 - Prob. 18E Ch. 13 - Graduation Its believed that as many as 25% of...Ch. 13 - Hiring In preparing a report on the economy, we...Ch. 13 - Margin of error A TV newscaster reports the...Ch. 13 - Another margin of error A medical researcher...Ch. 13 - Conditions For each situation described below,...Ch. 13 - More conditions Consider each situation described....Ch. 13 - Conclusions A catalog sales company promises to...Ch. 13 - More conclusions In January 2002, two students...Ch. 13 - Confidence intervals Several factors are involved...Ch. 13 - Confidence intervals, again Several factors are...Ch. 13 - Cars What fraction of cars made in Japan? The...Ch. 13 - Prob. 30E Ch. 13 - Mislabeled seafood In 2013 the environmental group...Ch. 13 - Mislabeled seafood, second course A Consumer...Ch. 13 - Prob. 33E Ch. 13 - Prob. 34E Ch. 13 - Prob. 35E Ch. 13 - Take the offer First USA, a major credit card...Ch. 13 - Teenage drivers An insurance company checks police...Ch. 13 - Junk mail Direct mail advertisers send...Ch. 13 - Prob. 39E Ch. 13 - Prob. 40E Ch. 13 - Prob. 41E Ch. 13 - Gambling A city ballot includes a local initiative...Ch. 13 - Rickets Vitamin D, whether ingested as a dietary...Ch. 13 - Teachers A 2011 Gallup poll found that 76% of...Ch. 13 - Prob. 45E Ch. 13 - Back to campus ACT, Inc. reported that 74% of 1644...Ch. 13 - Deer ticks Wildlife biologists inspect 153 deer...Ch. 13 - Prob. 48E Ch. 13 - Graduation, again As in Exercise 19, we hope to...Ch. 13 - Better hiring info Editors of the business report...Ch. 13 - Prob. 51E Ch. 13 - Another pilot study During routine screening, a...Ch. 13 - Prob. 53E Ch. 13 - Amendment A TV news reporter says that a proposed...

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