The shares of the U.S. automobile market held in 1990 by General
Motors, Japanese manufacturers, Ford, Chrysler, and other
manufacturers were, respectively, 34%, 32%, 19%, 9%, and 6%.
Suppose that a new survey of 1,000 new-car buyers shows the
following purchase frequencies: GM Japanese Ford Chrysler Other 397
259 231 80 33 (a) Show that it is appropriate to carry out a
chi-square test using these data. Each expected value is ≥ (b) Test
to determine whether the current market...