Maryland, as the four U.S. cities with the highest percentage of millionaires (Kiplinger website). Consider a sample of data that show the following number of millionaires for samples of individuals from each of the four cities. Millionaire Bridgeport, San Jose, Washington, Lexington Park, CA ETITT 36 264 Yes CT 42 City 458 D.C. 35 365 No a. What is the estimate of the percentage of millionaires in each of these cities (to 1 decimal)? MD 33 367
Maryland, as the four U.S. cities with the highest percentage of millionaires (Kiplinger website). Consider a sample of data that show the following number of millionaires for samples of individuals from each of the four cities. Millionaire Bridgeport, San Jose, Washington, Lexington Park, CA ETITT 36 264 Yes CT 42 City 458 D.C. 35 365 No a. What is the estimate of the percentage of millionaires in each of these cities (to 1 decimal)? MD 33 367
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:Maryland, as the four U.S. cities with the highest percentage of millionaires (Kiplinger website). Consider a sample of data that show the
following number of millionaires for samples of individuals from each of the four cities.
Millionaire
Cannot conclude
Bridgeport,
CT
CA
San Jose,
CA
Yes
42
36
No
458
264
a. What is the estimate of the percentage of millionaires in each of these cities (to 1 decimal)?
0.436
Use Table 3 of Appendix B to find the p-value.
The p-value is greater than 0.10
What is your conclusion?
City
Washington,
D.C.
35
365
Bridgeport, San Jose, Washington, Lexington Park,
CT
D.C.
MD
Lexington Park,
46
27.4
Percentage, %
36.5
b. Using a = 0.05 level of significance, test for the equality of the population proportion of millionaires for these four cities. What is the p-value?
Compute the value of the x² test statistic (to 3 decimals).
36.5
MD
33
367
that there is a difference among the population proportion of millionaires for these four cities.
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