TABLE 13-10
the Management of a Chain Electronic Store

question 73

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 13-3, the director of cooperative education wanted to test the hypothesis that the true slope was equal to 3.0. For a test with a level of significance of 0.05, the null hypothesis should be rejected if the value of the test statistic is __________.

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Definitions:

Commerce Clause

A provision in the United States Constitution that grants Congress the power to regulate commerce with foreign nations, among the states, and with the Indian tribes.

Fourteenth Amendment

An amendment to the United States Constitution granting citizenship to all persons born or naturalized in the U.S. and guaranteeing all citizens equal protection under the law.

Commerce Clause

A provision in the United States Constitution that empowers Congress to regulate commerce with foreign nations, and among the several states, and with the Indian tribes.

Federal Government

The national government of a federal country that shares power with states or provinces but has authority in matters of national concern.