In a 2018 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 44 37 37 32 No 456 263 363 368 a. What is the estimate of the percentage of millionaires in each of these cities (to 1 decimal)? Bridgeport, San Jose, Washington, Lexington Park, CT CA D.C. MD Percentage, % 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 x test statistic (to 3 decimals). Use Table 3 of Appendix B to find the p-value. The p-value is - Select your answer - What is your conclusion? Select your answer - v that there is a difference among the population proportion of millionaires for these four cities.

In a 2018 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 44 37 37 32 No 456 263 363 368 a. What is the estimate of the percentage of millionaires in each of these cities (to 1 decimal)? Bridgeport, San Jose, Washington, Lexington Park, CT CA D.C. MD Percentage, % 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 x test statistic (to 3 decimals). Use Table 3 of Appendix B to find the p-value. The p-value is - Select your answer - What is your conclusion? Select your answer - v that there is a difference among the population proportion of millionaires for these four cities.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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