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Has the proportion of Americans that are "20-somethings" decreased? According to the US Census Bureau, 14.8% of Americans living in 2004 were "20- somethings" (between ages 20 and 29). You take a random sample of 500 Americans and find that 59 of them fall in this age range. Has the proportion of Americans ages 20-29 decreased from what it was in 2004?

Has the proportion of Americans that are "20-somethings" decreased? According to the US Census Bureau, 14.8% of Americans living in 2004 were "20- somethings" (between ages 20 and 29). You take a random sample of 500 Americans and find that 59 of them fall in this age range. Has the proportion of Americans ages 20-29 decreased from what it was in 2004?

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
Section11.5: Interpreting Data
Problem 9E
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d) Calculate the test statistic (give to 3 decimal places) A
Transcribed Image Text:d) Calculate the test statistic (give to 3 decimal places) A
ge 2: Has the proportion of Americans that are "20-somethings" decreased? According to the US Census Bureau, 14.8% of Americans living in 2004 were "20- somethings" (between ages 20 and 29). You take a random sample of 500 Americans and find that 59 of them fall in this age range. Has the proportion of Americans ages 20-29 decreased from what it was in 2004? for this problem (z-test or t-test).
Transcribed Image Text:ge 2: Has the proportion of Americans that are "20-somethings" decreased? According to the US Census Bureau, 14.8% of Americans living in 2004 were "20- somethings" (between ages 20 and 29). You take a random sample of 500 Americans and find that 59 of them fall in this age range. Has the proportion of Americans ages 20-29 decreased from what it was in 2004? for this problem (z-test or t-test).
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