1.During the first 13 weeks of the television season, the Saturday evening 8:00 pm to 9:00 pm. audience proportions were recorded as ABC 30% CBS 26% NBC 22% and independents 22%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following viewing audience data: ABC 91 homes, CBS 62 homes, NBC 81 homes, and independent 66 homes. Test with a=0.05 to determine whether the viewing audience proprotuins changed. Round your answers to two decimal places

Test statistic = __________