A time-series plot of the numbers of Radio Shack stores is shown in Fig. 55. a. Estimate

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A time-series plot of the numbers of Radio Shack® stores is shown in Fig. 55.
A time-series plot of the numbers of Radio Shack® stores

a. Estimate the number of stores in 2004.
b. Estimate when there were 6000 stores.
c. Has the number of stores increased, stayed approximately constant, decreased, or none of these from 2002 to 2013?
d. A student estimates that there were 5100 stores in 2013 and that the number of stores had been decreasing by about 200 stores per year. He concludes that there were 5100 - 200 = 4900 stores in 2014.What would you tell the student?
e. In March, 2014, Radio Shack announced its plans to close as many as 1100 stores. Does this support your response to part (d)? Explain.

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