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…

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter9: Sequences, Probability And Counting Theory

Section9.7: Probability

Problem 1SE: What term is used to express the likelihood of an event occurring? Are there restrictions on its...

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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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