TABLE 12-10
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:

-Referring to Table 12-10, construct a 95% confidence interval for the change in mean weekly sales when the number of customers who make purchases increases by 1.

Question

TABLE 12-10
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:
 
-Referring to Table 12-10, construct a 95% confidence interval for the change in mean weekly sales when the number of customers who make purchases increases by 1.

Quizplus · Accepted Answer

The Answer of TABLE 12-10
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:
 
-Referring to Table 12-10, construct a 95% confidence interval for the change in mean weekly sales when the number of customers who make purchases increases by 1.

TABLE 12-10 the Management of a Chain Electronic Store Would Like to Like