During "Sweeps Week" Last Year, the Viewing Audience Was Distributed

During "sweeps week" last year, the viewing audience was distributed as follows: 36% NBC, 22% ABC, 24% CBS, and 18% FOX. This year during sweeps week, a random sample of 50 homes yielded the following data. Use Excel to test at α = .05 to determine if the audience proportions have changed. $$\begin{array} { l l l l l l l l l l } \text { ABC } & \text { FOX } & \text { ABC } & \text { FOX } & \text { ABC } & \text { ABC } & \text { CBS } & \text { NBC } & \text { FOX } & \text { FOX } \\\text { NBC } & \text { ABC } & \text { CBS } & \text { ABC } & \text { NBC } & \text { NBC } & \text { NBC } & \text { CBS } & \text { FOX } & \text { ABC } \\\text { ABC } & \text { FOX } & \text { NBC } & \text { CBS } & \text { CBS } & \text { NBC } & \text { NBC } & \text { ABC } & \text { FOX } & \text { FOX } \\\text { NBC } & \text { NBC } & \text { NBC } & \text { NBC } & \text { FOX } & \text { ABC } & \text { FOX } & \text { NBC } & \text { FOX } & \text { CBS } \\\text { CBS } & \text { CBS } & \text { FOX } & \text { FOX } & \text { NBC } & \text { CBS } & \text { FOX } & \text { CBS } & \text { FOX } & \text { NBC }\end{array}$$