TV Model
Three Hundred Individuals Were Asked to View the Picture

question 30

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 the hypotheses.
State the decision rule in terms of the critical value.
What is the conclusion?

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Definitions:

Broad Market

A term used to refer to a large, all-encompassing market or trading sector without specific focus or segmentation.

Span Of Control

The number of subordinates directly supervised by a manager, affecting the complexity and effectiveness of management.

Subordinate's Work

The tasks and responsibilities assigned to an employee or team member who reports to a supervisor or manager.

Decision

A choice made after consideration of options and usually involving a degree of judgment or conclusion.