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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. audience proportions were recorded as ABC 31%, CBS 26%, NBC 27%, and independents 16%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following viewing audience data: ABC 97 homes, CBS 68 homes, NBC 91 homes, and independents 44 homes. Test with = .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...
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