During the first 13 weeks of the television season, the Saturdayevening 8:00 P.M. to 9:00 P.M. audience proportions were recordedas ABC 30%, CBS 28%, NBC 22%, and independents 20%. A sample of 300homes two weeks after a Saturday night schedule revision yieldedthe following viewing audience data: ABC 93 homes, CBS 70 homes,NBC 82 homes, and independents 55 homes. Test with =.05 todetermine whether the viewing audience proportions changed. Roundyour answers to two decimal places.
