econometrics 4Quarterly revenue ($ millions) for Twitter for the first quarter of 2012 through the first quarter of 2014 are shown below:QuarterRevenue ($ millions)5476883829411210114116139127169138243142501516A. Construct atime series plot. What type of pattern exists in the data?17B. Using Excel, develop a linear trend equation for this time series.18C. Using Excel, develop a quadratic trend equation for this time series.d. Compare the MSE for each model. Which model appears to be better according to the MSE?e. Use the models developed in parts "b" and "c" to forecast revenue for the tenth quarter.f. Which of the two forecasts in part "e" would you use ? Why did you choose that particular model ?192021148149150151152153154

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Description: econometrics 4Quarterly revenue ($ millions) for Twitter for the first quarter of 2012 through the first quarter of 2014 are shown below:QuarterRevenue ($ millions)5476883829411210114116139127169138243142501516A. Construct atime series plot. What typ

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Quarterly revenue ($millions) for Twitter for the first quarter of 2012 through the first quarter of 2014 are shown below: Quarter Revenue ($ millions) 1 54 2 68 3 82 4 112 114 139 7 169 243 250 A. Construct atime series plot. What type of pattern exists in the data? B. Using Excel, develop a linear trend equation for this time series. C. Using Excel, develop a quadratic trend equation for this time series. d. Compare the MSE for each model. Which model appears to be better according to the MSE? e. Use the models developed in parts "b" and "c" to forecast revenue for the tenth quarter. f. Which of the two forecasts in part "e" would you use ? Why did you choose that particular model ? 18 19

Quarterly revenue ($millions) for Twitter for the first quarter of 2012 through the first quarter of 2014 are shown below: Quarter Revenue ($ millions) 1 54 2 68 3 82 4 112 114 139 7 169 243 250 A. Construct atime series plot. What type of pattern exists in the data? B. Using Excel, develop a linear trend equation for this time series. C. Using Excel, develop a quadratic trend equation for this time series. d. Compare the MSE for each model. Which model appears to be better according to the MSE? e. Use the models developed in parts "b" and "c" to forecast revenue for the tenth quarter. f. Which of the two forecasts in part "e" would you use ? Why did you choose that particular model ? 18 19

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Concept explainers

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.

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Question

econometrics

4
Quarterly revenue ($ millions) for Twitter for the first quarter of 2012 through the first quarter of 2014 are shown below:
Quarter
Revenue ($ millions)
54
7
68
8
3
82
9
4
112
10
114
11
6
139
12
7
169
13
8
243
14
250
15
16
A. Construct atime series plot. What type of pattern exists in the data?
17
B. Using Excel, develop a linear trend equation for this time series.
18
C. Using Excel, develop a quadratic trend equation for this time series.
d. Compare the MSE for each model. Which model appears to be better according to the MSE?
e. Use the models developed in parts "b" and "c" to forecast revenue for the tenth quarter.
f. Which of the two forecasts in part "e" would you use ? Why did you choose that particular model ?
19
20
21
148
149
150
151
152
153
154

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