n a survey, 95% of n = 400 randomly sampled married men said that they would marry their spouses again if they had it to do all over again. In the same survey, 85% of n = 500 married women said that they would marry their spouses if they had it to do all over again. (a) Calculate a 95% confidence interval that estimates the difference in proportions of married women and men who would marry their spouse again if they had it to do all over again. (Use pmen − pwomen. Round your answers to three decimal places.) to (b) On the basis of the confidence interval determined in part (a), can we infer that the population proportions who would marry their spouse again differ for men and women? Explain. No, because the interval covers 0.Yes, because the interval does not cover 0. No, because the interval does not cover 0.Yes, because the interval covers 0.
n a survey, 95% of n = 400 randomly sampled married men said that they would marry their spouses again if they had it to do all over again. In the same survey, 85% of n = 500 married women said that they would marry their spouses if they had it to do all over again. (a) Calculate a 95% confidence interval that estimates the difference in proportions of married women and men who would marry their spouse again if they had it to do all over again. (Use pmen − pwomen. Round your answers to three decimal places.) to (b) On the basis of the confidence interval determined in part (a), can we infer that the population proportions who would marry their spouse again differ for men and women? Explain. No, because the interval covers 0.Yes, because the interval does not cover 0. No, because the interval does not cover 0.Yes, because the interval covers 0.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
In a survey, 95% of
n = 400
randomly sampled married men said that they would marry their spouses again if they had it to do all over again. In the same survey, 85% of
n = 500
married women said that they would marry their spouses if they had it to do all over again.(a)
Calculate a 95% confidence interval that estimates the difference in proportions of married women and men who would marry their spouse again if they had it to do all over again. (Use
pmen − pwomen.
Round your answers to three decimal places.)to
(b)
On the basis of the confidence interval determined in part (a), can we infer that the population proportions who would marry their spouse again differ for men and women? Explain.
No, because the interval covers 0.Yes, because the interval does not cover 0. No, because the interval does not cover 0.Yes, because the interval covers 0.
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