the - 10, the sample size is 5% of the population size, and the sample Because npo (1- Po) = v satisfied. requirements for testing the hypothesis

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
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In a previous year, 58% of females aged 15 and older lived alone. A sociologist tests whether this percentage is different today by conducting a random sample of
350 females aged 15 and older and finds that 210 are living alone. Is there sufficient evidence at the a= 0.01 level of significance to conclude the proportion has
changed?
Because npp (1- Po)
v 10, the sample size is
5% of the population size, and the sample
V the
- satisfied.
requirements for testing the hypothesis
(Round to one decimal place as needed.
Transcribed Image Text:In a previous year, 58% of females aged 15 and older lived alone. A sociologist tests whether this percentage is different today by conducting a random sample of 350 females aged 15 and older and finds that 210 are living alone. Is there sufficient evidence at the a= 0.01 level of significance to conclude the proportion has changed? Because npp (1- Po) v 10, the sample size is 5% of the population size, and the sample V the - satisfied. requirements for testing the hypothesis (Round to one decimal place as needed.
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