Mathematics, 18.03.2021 01:10, jadentdaniels
In a study, Phoenix Marketing International identified Bridgeport, Connecticut; San Jose, California; Washington, DC; and Lexington Park, 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.
City
Bridgeport, San Jose, Washington, Lexington Park
Millionaire CT CA D. C. MD
Yes 42 33 35 32
No 458 267 365 368
Required:
a. What is the estimate of the percentage of millionaires in each of these cities (to 1 decimal)?
b. b. Using α= 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 x^2 test statistic (to 3 decimals).
Answers: 2
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