Stores
a Vice President Would Like to Know Whether There

question 19

Essay

Stores
A vice president would like to know whether there is a difference between the average number of customers per day between four different stores.The following data was collected over the same 5-day period for each store.
$$\begin{array} { | c | c | c | c | c | } \hline & \text { Stare 1 } & \text { Stare 2 } & \text { Stare 3 } & \text { Stare 4 } \\\hline \text { Day 1 } & 36 & 12 & 25 & 30 \\\hline \text { Day 2 } & 42 & 22 & 51 & 36 \\\hline \text { Day 3 } & 39 & 33 & 40 & 28 \\\hline \text { Day 4 } & 25 & 30 & 42 & 46 \\\hline \text { Day 5 } & 47 & 34 & 26 & 35 \\\hline\end{array}$$
-Develop a randomized block design to test for the difference between the average number of customers per day between four different stores using $\alpha$ = 0.05 and using the days as the blocking variable.
State the decision rule in terms of the critical value.
What is your conclusion?

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Definitions:

Recessions

Periods of economic decline marked by falling GDP and other economic indicators, often resulting in higher unemployment rates.

Office Machines

Equipment used in an office environment for administrative or clerical tasks, such as printers, copiers, and computers.

Depreciation

The reduction in the value of an asset over time, typically due to wear and tear, obsolescence, or market conditions.

Net Investment

The total spending on new capital minus depreciation on existing capital within a given period.