Random Samples of Individuals from Three Different Cities Were Asked

question 2

Essay

Random samples of individuals from three different cities were asked how much time they spend per day watching television. The results (in minutes) for the three groups are shown below. $$\begin{array} { c c c } \text { City I } & \text { City II } & \text { City III } \\260 & 178 & 211 \\280 & 190 & 190 \\240 & 220 & 250 \\260 & 240 & \\300 & &\end{array}$$ At α = .05, use Excel to test to see if there is a significant difference in the averages of the three groups.

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Definitions:

Materials

The substances or components used in the production of goods or in the execution of services.

Total Costs

The sum of all expenses incurred in the production of goods or services, including fixed and variable costs.

Variable Costs

Costs that vary directly with the level of production or output, for example, materials and labor costs used in manufacturing.

Accounting Profit

The net income of a company calculated by deducting all operational and overhead costs from total revenue, according to generally accepted accounting principles.