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The shares of the U.S. automobile market held in 1990 by General Motors, Japanese manufacturers, Ford, Chrysler, and other manufacturers were, respectively. 34%, 27%, 18%, 13%, and 8%. Suppose that a new survey of 1,000 new-car buyers shows the following purchase frequencies: GM Japanese Ford Chrysler 390 241 192 81 picture Click here for the Excel Data File (a) Show that it is appropriate to carry out a chi-square test using these data. Each expected value is Other 96 (b) Determine whether the current market shares differ from those of 1990. Use a = .05. (Round your answer to 3 decimal places.) x^2 Do not reject Reject HO. Conclude current market shares from those of 1990.

The shares of the U.S. automobile market held in 1990 by General Motors, Japanese manufacturers, Ford, Chrysler, and other manufacturers were, respectively. 34%, 27%, 18%, 13%, and 8%. Suppose that a new survey of 1,000 new-car buyers shows the following purchase frequencies: GM Japanese Ford Chrysler 390 241 192 81 picture Click here for the Excel Data File (a) Show that it is appropriate to carry out a chi-square test using these data. Each expected value is Other 96 (b) Determine whether the current market shares differ from those of 1990. Use a = .05. (Round your answer to 3 decimal places.) x^2 Do not reject Reject HO. Conclude current market shares from those of 1990.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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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The shares of the U.S. automobile market held in 1990 by General Motors, Japanese manufacturers, Ford, Chrysler, and other manufacturers were, respectively, 34%, 27%, 18%, 13%, and 8%. Suppose that a new survey of 1,000 new-car buyers shows the following purchase frequencies: GM 390 Japanese Ford Chrysler 192 241 81 picture Click here for the Excel Data File (a) Show that it is appropriate to carry out a chi-square test using these data. Each expected value is x^2 Other 96 (b) Determine whether the current market shares differ from those of 1990. Use a = .05. (Round your answer to 3 decimal places.) Do not reject Reject HO. Conclude current market shares from those of 1990.
Transcribed Image Text:The shares of the U.S. automobile market held in 1990 by General Motors, Japanese manufacturers, Ford, Chrysler, and other manufacturers were, respectively, 34%, 27%, 18%, 13%, and 8%. Suppose that a new survey of 1,000 new-car buyers shows the following purchase frequencies: GM 390 Japanese Ford Chrysler 192 241 81 picture Click here for the Excel Data File (a) Show that it is appropriate to carry out a chi-square test using these data. Each expected value is x^2 Other 96 (b) Determine whether the current market shares differ from those of 1990. Use a = .05. (Round your answer to 3 decimal places.) Do not reject Reject HO. Conclude current market shares from those of 1990.
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