A tourist association gives out pamphlets, maps, and other tourist-related information to people who call a toll-free number and request the information
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A tourist association gives out pamphlets, maps, and other tourist-related information to people who call a toll-free number and request the information

A tourist association gives out pamphlets, maps, and other tourist-related information to people who call a toll-free number and request the information. The association orders the packets of information from a document-printing

company and likes to have enough available to meet the immediate need without having too many sitting around taking up space. The marketing manager decided to develop a multiple regression model to be used in predicting the
number of calls that will be received in the coming week. A random sample of 12 weeks is selected, shown in the accompanying table. Complete parts a through c.
Click the icon to view the data table.
a. Develop the multiple regression model for predicting the number of calls received, using backward elimination stepwise regression with a level of significance of 0.05. Complete the regression model below and enter O for the
coefficient of any variables that are not significant.

The random sample of 12 weeks is
shown to the right, with the following
variables.
y Number of calls
x1 = Number of advertisements placed
the previous week
x2 = Number of calls received the
previous week
Number of airline tour bookings
into cities the agency provides tours to
for the current week


Hint
Regression analysis is the technique which is widely used for prediction and forecasting. It is basically used to know that dependent variable is related to which independent variable. Linear regression is used to estimate the relationships between variables by fitting an equation to given data. Linear Regression is used to predict the value of y which is dependent on x (explanatory variable or in...

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