Consider the following time series. t 1 2 3 4 5 6 7 Yt 120 112 101 98 96 93 87 (A) Construct a time series plot. What type of pattern exists in the data? a) The time series plot shows a seasonal pattern. b) The time series plot shows a linear trend.     c) The time series plot shows a horizontal pattern. d) The time series plot shows a nonlinear trend. (B) Develop the linear trend equation for this time series. (Round your numerical values to two decimal places.) Tt = ______________ . (C) What is the forecast for t = 8? (Round your answer to one decimal place.)   ______________ .

MATLAB: An Introduction with Applications
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Consider the following time series.

t 1 2 3 4 5 6 7

Yt

120 112 101 98 96 93 87

(A) Construct a time series plot.

What type of pattern exists in the data?

a) The time series plot shows a seasonal pattern.

b) The time series plot shows a linear trend.    

c) The time series plot shows a horizontal pattern.

d) The time series plot shows a nonlinear trend.

(B) Develop the linear trend equation for this time series. (Round your numerical values to two decimal places.)

Tt = ______________ .

(C) What is the forecast for t = 8? (Round your answer to one decimal place.)

 

______________ .

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