The file P12_01.xlsx contains the monthly number of airline tickets sold by a travel agency. a. Does
Question:
a. Does a linear trend appear to fit these data well? If so, estimate and interpret the linear trend model for this time series. Also, interpret the R2 and se values.
b. Provide an indication of the typical forecast error generated by the estimated model in part a.
c. Is there evidence of some seasonal pattern in these sales data? If so, characterize the seasonal pattern.
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Related Book For 
Data Analysis and Decision Making
ISBN: 978-0538476126
4th edition
Authors: Christian Albright, Wayne Winston, Christopher Zappe
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