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? a) State the appropriate test for this problem (z-test or t-test). Ho: A 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. A/
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? a) State the appropriate test for this problem (z-test or t-test). Ho: A 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. A/
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:ge 2:
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?
a) State the appropriate test for this problem (z-test or t-test).
Ho:
A
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.
A/
Transcribed Image Text:Ha:
d) Calculate the test statistic (give to 3 decimal places)
A
A
A/
e) Determine the P-value (give to 4 decimal places).
f) At a= 0.05, what is your conclusion? Explain in context of the problem.
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