TABLE 13-10
the Management of a Chain Electronic

question 164

Essay

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 change in average weekly sales when the number of customers who make purchases increases by one.

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Definitions:

Raymond Cattell

A psychologist who made significant contributions to the understanding of personality and intelligence through factor analysis.

Personality Traits

Enduring characteristics or behaviors that define an individual's patterns of thinking, feeling, and behaving across various situations.

Humans

Homo sapiens, the species of bipedal primates to which all modern human beings belong, characterized by complex language, social structures, and the ability to use tools.

Five-factor Model

A model proposing that five broad dimensions underlie all human personality traits: openness, conscientiousness, extraversion, agreeableness, and neuroticism.