What is the test statistic?

Question

~~ Test with   = .05 to determine whether the viewing audience proportions changed (Round your answer to 3 decimal places). 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   = .05 to determine whether the viewing audience proportions changed.

Answer 1

????????????? "wether" ????????...its dark outside, dont no if sun or raen

me dont no bout NE av yer fansee krat terms, but 95+70+89+46=300

abc=95, 95/300=0.3166666...32%...was 29%

cbs=70, 70/300=0.2333333..=23%...was 28%

nbc=89, 89/300=0.29666666...=30%

ind=46, 46/300=0.15333333...=15%