In a Pew Research poll, 287 out of 522 randomly selected U.S. men were able to identify Egypt when it was highlighted on a map of the Middle East. When 520 randomly selected U.S. wornen were asked, 233 were able to do so. Let Pi and p: be the proportion of all inen and women who can identify Egypt on a map. Construct and interpret a 95% confidence interval for p Pz- (0.56(0.45) 622 (0.445)(0.562) O 0.102 1.96 520 0.102 1.645 (0.448)(0.553) 520 22 0.102 1.645 V (0.448)(0.553) 520 22 0.102 1.96 (0.449)(0.553) 520 522 0.102 1.96 V

In a Pew Research poll, 287 out of 522 randomly selected U.S. men were able to identify Egypt when it was highlighted on a map of the Middle East. When 520 randomly selected U.S. wornen were asked, 233 were able to do so. Let Pi and p: be the proportion of all inen and women who can identify Egypt on a map. Construct and interpret a 95% confidence interval for p Pz- (0.56(0.45) 622 (0.445)(0.562) O 0.102 1.96 520 0.102 1.645 (0.448)(0.553) 520 22 0.102 1.645 V (0.448)(0.553) 520 22 0.102 1.96 (0.449)(0.553) 520 522 0.102 1.96 V

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Description: In a Pew Research poll, 287 out of 522 randomly selected U.S. men were able to identify Egypt when it was highlighted on a map of the Middle East. When 520randomly selected U.S. women were asked, 233 were able o do so. Let Pi and p be the proportion

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Concept explainers

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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Question

In a Pew Research poll, 287 out of 522 randomly selected U.S. men were able to identify Egypt when it was highlighted on a map of the Middle East. When 520
randomly selected U.S. women were asked, 233 were able o do so. Let Pi and p be the proportion of all inen and women who can identify Egypt on a map.
Construct and interpret a 95% confidence interval for p
(0.448)(0.52)
820
(0.55)(0.45)
0.102 1.90V
622
0.102 1.645 V
(0.56)(0.45)
(0.448)(0.552)
620
0.102 1.645 V
70.448)(0.652)
620
O 0.102 1.96
(0448)(0.662)
620
822
O 0.102 1.00
(0.490)(0.501)
1042

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