A recent survey suggests that 52% of Americans say dogs are their favorite animals. If 84 people are chosen at random, find the probability that more than 42% of them prefer dogs.A Gallup poll found that 181 high school students out of 785 said that math was their favorite subject. Construct a 95% confidence interval for the proportion of high school students that say math is their favorite subject.If you increase the level of confidence in a confidence interval, how is the margin of error affected?

As per honor code, we will only answer first question: 1) p=0.52 n=84, p^=0.42 Use the formula of…

Answered: A recent survey suggests that 52% of…

A recent survey suggests that 52% of Americans say dogs are their favorite animals. If 84 people are chosen at random, find the probability that more than 42% of them prefer dogs.

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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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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A recent survey suggests that 52% of Americans say dogs are their favorite animals. If 84 people are chosen at random, find the probability that more than 42% of them prefer dogs.
A Gallup poll found that 181 high school students out of 785 said that math was their favorite subject. Construct a 95% confidence interval for the proportion of high school students that say math is their favorite subject.
If you increase the level of confidence in a confidence interval, how is the margin of error affected?

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