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(Solution) - Consider the two relative frequency histograms at the top of

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Consider the two relative frequency histograms at the top of the next page. The histogram on the left was constructed by selecting 100 different random samples of size 35 from a population in which 17% donated to a nonprofit organization. For each sample, the sample pro-portion ? p was computed and then the 100 ? p values were used to construct the histogram. The histogram on the right was constructed in a similar way but used samples of size 110.

a. Which of the two histograms indicates that the value of ? p has more sample- to- sample variability? How can you tell?
b. For which of the two sample sizes, n = 35 or n = 110, do you think the value of ? p would be more likely to be close to the actual population proportion of p = 0.17? What about the given histograms supports your choice?


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This question was answered on: Jul 11, 2017

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