TV Model
Three Hundred Individuals Were Asked to View the Picture

Essay

TV Model
Three hundred individuals were asked to view the picture quality of four different TVs and asked to choose the one they preferred.The data is shown in the following table:
$$\begin{array} { | c | c | } \hline \text { TV Madel } & \text { Number Wha preferred } \\\hline \text { A } & \mathbf { 8 2 } \\\hline \mathrm { B } & \mathbf { 5 2 } \\\hline \mathrm { C } & 73 \\\hline \text { D } & \mathbf { 8 0 } \\\hline \text { Tatal } & \text { 300 } \\\hline\end{array}$$
-Test the equality of proportions at the 0.05 level.
What are the null and alternative hypotheses?