During the first 13weeks 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 24% , and independents 19% . A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following viewing audience data: ABC 95homes, CBS 64homes, NBC81 homes, and independents 60homes. Test with a=.05to determine whether the viewing audience proportions changed.

Round your answers to two decimal places.

Test statistic =