Consider the following time series data. Week123456Value19141612 1815 (a) Construct a time series plot.20202020181818161614-1412-1210-10108.8-6-6-4-442-212345612345613612456WeekWeekWeekWeekWhat type of pattern exists in the data?O The data appear to follow a horizontal pattern.O The data appear to follow a cyclical pattern.• The data appear to follow a seasonal pattern.O The data appear to follow a trend pattern.(b) Develop the three-week moving average forecasts for this time serles. (Round your answers to two dedimal places.)Time SeriesWeekForecastValue1192143164121615Compute MSE. (Round your answer to two decimal places.)MSE -What is the forecast for week 77Time Series Value

a) The correct answer is "Option B". On observing the graph, the data appear to be seasonal…

Answered: what type of pattern exists in the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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QUESTION 5 Assume the occurrence of EF2 or greater tornadoes at a certain location can be modeled with a Poisson distribution. If the return period is 17000 years, what is the probability that at least one such tornado will occur at that location during the next 200 years?
Question 1 and 2
QUESTION 27 An investor has decided to form a portfolio by putting 55% of his money into Tesla's stock and 45% into Honda's stock. The investor assumes that the expected returns will be 18% on Tesla and 12% on Honda, and that the standard deviations will be 15% and 10%, respectively. What is the expected (mean) return on the portfolio? O E [Return on portfolio] = 0.135 %3D O E [Return on portfolio] = 0.204 %3D O E [Return on portfolio] = 0.153 O E [Return on portfolio] = 0.351 %3D
Question 8 of 15 The Centers for Disease Control and Prevention (CDC) Agricultural deaths Cumulative frequency collect data on workplace safety. In 2012, the CDC reported deaths related to agricultural production in the United States. The accompanying table shows the causes Machinery 26 Motor Vehicles 47 Drowning 65 of agricultural deaths in people under 20 years of age and their reported cumulative frequency. Other 111 Select the statements that accurately complete the following sentence. The cumulative frequency table shows that O there were 111 agricultural deaths in people under 20 years of age that were due to accidents other than machinery, motor vehicles, or drowning in the United States in 2012. O together, machinery or motor vehicle accidents contributed to 47 agricultural deaths in people under 20 years of age in the United States in 2012. O accidents involving machinery contributed to 26 agricultural deaths in people under 20 years of age in the United States in 2012. O…
QUESTION 6 Assume that babies are equally likely to be boys (B) or girls (G). Assume a woman has 4 children. Which sequence is more likely? Sequence A: GGGG or Sequence B: GBGB Sequence A Sequence B Neither. They are both equally likely. None of the above. QUESTION 7 According to the text, the standard recommendation is to perform at least how many trials of a simulation? O 10 O 25 O 100 O 1000 QUESTION 8 The Law of Large Numbers tells us that if an experiment with a random outcome is repeated a large number of times... the empirical probability of an event is likely to be close to the true probability. the theoretical probability of an event is likely to be close to the true probability.
QUESTION 25 F5 tornadoes occur in a particular state according to a Poisson process at a rate of λ = 0.2 per year. What is the probability that no tornadoes occur in the state over an 8-year period? O A.0.20 OB. 0.40 O C. 0.60 O D. 0.80
Question 4 Suppose an electric-vehicle manufacturing company estimates that a driver who commutes 50 miles per day in a particular vehicle has a recharging time that has a uniformly distributed between 80 and 110 minutes. What is the expected recharging time in minutes? (Enter your answer with no decimal places)
Question 6.88
QUESTION 3 The Global Business Travel Association (GBTA) reported the domestic airfare for business travel for the current year and the previous flights with their domestic airfares (in $) shown for both years. Suppose GBTA wished to see if the average airfare for the current yea for the previous year at a=.05. Current 328 730 527 424 230 620 Previous 335 738 526 429 230 634 For the hypothesis stated above, what is the P-value? O a. .975 < P-value <.99 O b. .01 < P-value <.025 Oc. None of the answers is correct d. .025 < P-value <,05 e. .05 < P-value <.10 QUESTION 4 Suppose you wish to see if there is a relationship between the price (units=$1000) and the rating (units=10 points) of laptop comput A regression analysis on 12 computers revealed Ex = 16.20, Ex = 24.12, Eyj = 90.00, Eyj = 684.40, and Exjyj = 125.70. Click Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook Air 20 F3 000 F4 $ & 1 2 5 13
The following plots have been obtained for a time series. a) Suggest an appropriate ARIMA model. b) The following ARIMA output has been obtained from R. Based on this output, which model would you recommend for forecasting?
QUESTION 15 A manager wishes to simulate 10 days of operation of an inventory system. The beginning inventory at the start of the first day is 69 units. Demand is known to be uniformly distributed in the range 4 to 8 units per day, inclusive. The random numbers used for the 10-day simulation are 0.25, 0.61, 0.09, 0.62, 0.72, 0.59, 0.33, 0.51, 0.17, 0.29. Assuming no new units are delivered during the 10-day simulation. The inventory at the end of the 5th day is: (Round your answer to 2 decimal places)
1. Consider the following time series data. Week 1 2 3 4 5 6 Value 18 13 17 11 18 15 Using the naive method (most recent value) as the forecast for the next week, compute the following measures of forecast accuracy. (a) mean absolute error MAE, Mean squared error MSE, Mean absolute percentage error MAPE (b) What is the forecast for week 7?

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