Mathematics, 25.04.2020 01:06 evelyng58

During the first 13 weeks of the television season, the Saturday evening 8:00 p. m. to 9:00 p. m. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following viewing audience data: ABC 95 homes, CBS 70 homes, NBC 89 homes, and independents 46 homes. Test with α= 0.05 to determine whether the viewing audience proportions changed.

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During the first 13 weeks of the television season, the Saturday evening 8:00 p. m. to 9:00 p. m. au...