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e-open MindTap Now-To Get R UCF Off Campus Housing Open MindTap Now-To get MindTap-Cengage Learning Statistics and Probability que + × X x x ← → С https://ng.cengage.com/static/nb/ui/evo/index.html?deploymentid=57360043871 15514484747064&eISBN-9781337115377&id=418977243&sn.. ☆ Paused CENGAGE MINDTAP Q Search this course Amanda Module 9 Homework Consider the following time series. 1 2456 7 | 81 59 45 34 30 28 35 a. Which of the following is the correct time series plot? TimeSeriesValue 80 70 60 50 40 30 20 10 TimePeriodit TimeSeries Value 90 80
e-open MindTap Now-To Get R UCF Off Campus Housing Open MindTap Now-To get MindTap-Cengage Learning Statistics and Probability que + × X x x ← → С https://ng.cengage.com/static/nb/ui/evo/index.html?deploymentid=57360043871 15514484747064&eISBN-9781337115377&id=418977243&sn.. ☆ Paused CENGAGE MINDTAP Q Search this course Amanda Module 9 Homework 30 20 10 TimePeriodit 1 -Select your answer- What type of pattern exists in the data? 1 -Select your answer- b. Develop the quadratic trend equation for the time series. Enter negative value as negative number. (to 3 decimals) c. What is the forecast for t- 8 (to 2 decimals)? Check My Work (3 remaining) Icon Key Exercise 17.20 Algorithmic 4 Question 5 of 5 Save Submit Assignment for Grading

a)

we can follow a downward trend in the above graph .

[IF YOU PROVIDE THE OPTIONS, I WOULD BE ABLE TO ANSWER MORE ACCURATELY]

b) Quadratic trend equation using MINITAB :

Yt = 106.57 - 28.536 t +2.607 t2

[If you need manual calculation of the above, let me know below. ]

Using the above equation  forecast for t=8 is :

Yt = 45.13

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