Instruction 12-10
the Management of a Chain Electronic Store Would

question 44

Short Answer

Instruction 12-10
The management of a chain electronic store would like to develop a model for predicting the weekly sales (in thousands of dollars)for individual stores based on the number of customers who made purchases.A random sample of 12 stores yields the following results:
$$\begin{array} { | c | c | } \hline \text { Customers } & \text { Sales (Thousands of Dollars) } \\\hline 907 & 11.20 \\\hline 926 & 11.05 \\\hline 713 & 8.21 \\\hline 741 & 9.21 \\\hline 780 & 9.42 \\\hline 698 & 10.08 \\\hline 510 & 6.73 \\\hline 529 & 7.02 \\\hline 460 & 6.12 \\\hline 872 & 9.52 \\\hline 650 & 7.53 \\\hline 603 & 7.25 \\\hline\end{array}$$
-Referring to Instruction 12-10,what are the degrees of freedom of the F test statistic when testing whether the number of customers who make purchases is a good predictor for weekly sales?

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Definitions:

Technological Advance

Progress in technology and innovation that leads to new methods, products, or improvements in production, efficiency, and development.

Preferred Mix

The optimal combination of goods and services chosen by an individual or firm based on preferences, income, and prices.

Productive Efficiency

Achieved when goods or services are produced at the lowest possible cost and utilizing resources in the best way possible.

Average Total Cost

The total cost of production divided by the quantity of output produced, showing the average cost per unit.