Elementary Statistics
Elementary Statistics
12th Edition
ISBN: 9780321837936
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 14.2, Problem 12BSC
To determine

To construct: The run chart for the 50 consecutive measurements.

To describe: A suggestion using the obtained results.

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2.62 For the period 2001–2008, the Bristol-Myers Squibb Company, Inc. reported the following amounts (in billions of dollars) for (1) net sales and (2) advertising and product promotion. The data are also in the file XR02062.   Source: Bristol-Myers Squibb Company, Annual Reports, 2005, 2008.   Year         Net Sales           Advertising/Promotion 2001       $16.612                     $1.201 2002       16.208                     1.143 2003       18.653                     1.416 2004       19.380                     1.411 2005       19.207                     1.476 2006       16.208                     1.304 2007       18.193                     1.415 2008        20.597                    1.550   For these data, construct a line graph that shows both net sales and expenditures for advertising/product promotion over time. Some would suggest that increases in advertising should be accompanied by increases in sales. Does your line graph support this?
Using the data in Table 6–11, calculate a 3-month moving average forecast for month 12.
Using the data in Table 6–11, calculate a 3-month moving average forecastfor month 12.
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