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In a random sample of 80 male students at a college, 28 said they frequently send at least one text message before getting out of bed in the morning. In a random sample of 105 female students at the same college, 50 said they frequently texted before getting out of bed. Let p₁= the proportion of all male students at this college who frequently text before getting up, and let p2= the corresponding proportion for female students. For a test of the hypothesis Ho: p₁-P2 = 0, which of the following is a correct expression for the test statistic? a. 0.35 -0.48 0.48(0.52) 0.35(0.65) 80 + 105 b. 0.350.48 0.35(0.65) 0.48(0.52) + 80 105 (0.42)(0.58) 185 Z=

In a random sample of 80 male students at a college, 28 said they frequently send at least one text message before getting out of bed in the morning. In a random sample of 105 female students at the same college, 50 said they frequently texted before getting out of bed. Let p₁= the proportion of all male students at this college who frequently text before getting up, and let p2= the corresponding proportion for female students. For a test of the hypothesis Ho: p₁-P2 = 0, which of the following is a correct expression for the test statistic? a. 0.35 -0.48 0.48(0.52) 0.35(0.65) 80 + 105 b. 0.350.48 0.35(0.65) 0.48(0.52) + 80 105 (0.42)(0.58) 185 Z=

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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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In a random sample of 80 male students at a college, 28 said they frequently send at least one text message before getting out of bed in the morning. In a random sample of 105 female students at the same college, 50 said they frequently texted before getting out of bed. Let p₁= the proportion of all male students at this college who frequently text before getting up, and let p2= the corresponding proportion for female students. For a test of the hypothesis Ho: p₁-P2 = 0, which of the following is a correct expression for the test statistic? a. 0.35 -0.48 0.48(0.52) 0.35(0.65) 80 + 105 b. 0.350.48 0.35(0.65) 0.48(0.52) + 80 105 (0.42)(0.58) 185 Z=
Transcribed Image Text:In a random sample of 80 male students at a college, 28 said they frequently send at least one text message before getting out of bed in the morning. In a random sample of 105 female students at the same college, 50 said they frequently texted before getting out of bed. Let p₁= the proportion of all male students at this college who frequently text before getting up, and let p2= the corresponding proportion for female students. For a test of the hypothesis Ho: p₁-P2 = 0, which of the following is a correct expression for the test statistic? a. 0.35 -0.48 0.48(0.52) 0.35(0.65) 80 + 105 b. 0.350.48 0.35(0.65) 0.48(0.52) + 80 105 (0.42)(0.58) 185 Z=
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