Question

A market analyst believes that automobile preferences among consumers among the top ten manufacturers are uniform or equal. To test this, a random sample of 10,000 consumers is selected and asked to choose their preferred brand. The results are as follows:

  

Observed

   Frequency

Company or Brand                 of Preferences

Fiat-Chrysler                                    857

Nissan                                              867

Ford                                                 594

Tesla                                                 936

GM                                                 1568

Honda                                              885

BMW                                               916

Daimler                                          1218

Volkswagen                                     959

Toyota                                            1200

Conduct a Chi-Square Goodness of Fit Test at the 0.05 level to test the analyst’s claim. CONDUCT THIS BY HAND and use the Chi-Square table.

Answer 1

H0 : automobile preferences among consumers among the top ten manufacturers are uniform.

H1 : automobile preferences among consumers among the top ten manufacturers are NOT uniform.