TABLE 13-10
the Management of a Chain Electronic Store

question 43

Short Answer

TABLE 13-10
The management of a chain electronic store would like to develop a model for predicting the weekly sales (in thousand of dollars) for individual stores based on the number of customers who made purchases. A random sample of 12 stores yields the following results:
$$\begin{array} { | l | l | } \hline \text { Customers } & \text { Sales (Thousands of Dollars) } \\\hline 907 & 11.20 \\\hline 926 & 11.05 \\\hline 713 & 8.21 \\\hline 741 & 9.21 \\\hline 780 & 9.42 \\\hline 898 & 10.08 \\\hline 510 & 6.73 \\\hline 529 & 7.02 \\\hline 460 & 6.12 \\\hline 872 & 9.52 \\\hline 650 & 7.53 \\\hline 603 & 7.25 \\\hline\end{array}$$
-Referring to Table 13-10, construct a 95% confidence interval for the average weekly sales when the number of customers who make purchases is 600.

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Definitions:

Sensory Stimuli

External or internal inputs that affect the sensory organs leading to perception or reaction.

Left-Handed

The preference for using the left hand for tasks such as writing and other activities, due to the brain's hemispheric dominance for motor skills.

Males

The sex that is typically characterized by the XY chromosome configuration in humans and other species, often associated with specific physiological and reproductive functions.

Females

Refers to the sex that can bear offspring or produce eggs, distinguished biologically by the production of gametes (ova), which can be fertilized by male gametes.