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A Harris Poll found that 54% of American adults dont think that human beings developed

Chapter 12, Problem AP4.15

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QUESTION:

A Harris Poll found that 54% of American adults dont think that human beings developed from earlier species. The polls margin of error for 95% confidence was 3%. This means that (a) there is a 95% chance that the interval (51%, 57%) contains the true percent of American adults who do not think that human beings developed from earlier species. (b) the poll used a method that provides an estimate within 3% of the truth about the population 95% of the time. (c) if Harris takes another poll using the same method, the results of the second poll will lie between 51% and 57%. (d) there is a 3% chance that the interval is correct. (e) the poll used a method that would result in an interval that contains 54% in 95% of all possible samples of the same size from this population. AP4

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QUESTION:

A Harris Poll found that 54% of American adults dont think that human beings developed from earlier species. The polls margin of error for 95% confidence was 3%. This means that (a) there is a 95% chance that the interval (51%, 57%) contains the true percent of American adults who do not think that human beings developed from earlier species. (b) the poll used a method that provides an estimate within 3% of the truth about the population 95% of the time. (c) if Harris takes another poll using the same method, the results of the second poll will lie between 51% and 57%. (d) there is a 3% chance that the interval is correct. (e) the poll used a method that would result in an interval that contains 54% in 95% of all possible samples of the same size from this population. AP4

ANSWER:

Step 1 of 2

In this problem, it is given that:

- the point estimate of the population proportion is ;

- the margin of error is ;

- the confidence level is ;

- the significance level is .

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