Has the proportion of Americans that are "20-somethings" decreased? According to the US Census Bureau, 15.1% of Americans living in 2004 were "20- somethings" (between ages 20 and 29). You take a random sample of 500 American and find that 65 of them fall in this age range. Has the proportion of Americans age 20-29 decreased from what it was in 2004? a) State the appropriate test for this problem (z-test or t-test). b) Why did you choose that test? c) State the null and alternate hypotheses for this test. Use 'p' for proportions and 'mu' for means. Ho: Ha: d) Calculate the test statistic (give to 3 decimal places)
Has the proportion of Americans that are "20-somethings" decreased? According to the US Census Bureau, 15.1% of Americans living in 2004 were "20- somethings" (between ages 20 and 29). You take a random sample of 500 American and find that 65 of them fall in this age range. Has the proportion of Americans age 20-29 decreased from what it was in 2004? a) State the appropriate test for this problem (z-test or t-test). b) Why did you choose that test? c) State the null and alternate hypotheses for this test. Use 'p' for proportions and 'mu' for means. Ho: Ha: d) Calculate the test statistic (give to 3 decimal places)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Has the proportion of Americans that are "20-somethings" decreased?
According to the US Census Bureau, 15.1% of Americans living in 2004 were "20-
somethings" (between ages 20 and 29). You take a random sample of 500 Americans
and find that 65 of them fall in this age range. Has the proportion of Americans ages
20-29 decreased from what it was in 2004?
a) State the appropriate test for this problem (z-test or t-test).
b) Why did you choose that test?
c) State the null and alternate hypotheses for this test. Use 'p' for proportions and
'mu' for means.
Ho:
Ha:
d) Calculate the test statistic (give to 3 decimal places)
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