TABLE 13-10 the Management of a Chain Electronic Store Would Like to Like

Essay

TABLE 13-10
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:

-Referring to Table 13-10, construct a 95% confidence interval for the change in mean weekly sales when the number of customers who make purchases increases by one.