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 10 In a large department store, the owner wishes to see whether the number of shoplifting incidents per day will change if the number of uniformed security officers is doubled. A random sample of 7 days before security is increased and 7 days after the increase shows the number of shoplifting incidents as follow: Day Monday Tuesday Wednesday Thursday Friday Saturday Sunday No. of shoplifting incidents Before After 5 3 7 2 3 6 5 8 12 4 3 1 6 4 Is there enough evidence to support the claim, at a = 0.05, that there is a difference in the number of shoplifting incidents before and after the increase in security?
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…
q3 is for context, need help answering only the d section. Thank you in advance
Question 4 The first two columns of the accompanying table provide a frequency distribution, for the days to maturity of a sample of 40 short-temm investments. Calculate the mean and sample standard deviation. Days to maturity 30-39 Frequency 1 40-49 6. 50-59 6. 60-69 70-79 6. 80-89 90-99 Question 5 Below are the percentages of the population over 25 years of age who have completed 4 years of college or more in 50 states. Find the mean and standard deviation. Percentage 15.2-19.6 19.7-24.1 24.2-28 6 28.7-33.1 33.2-37.6 37.7-42.1 42.2-46.6 Frequency 15 18 6. 1
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 Our department seminar room is lit by 7 light bulbs, controlled by a single switch. A minimum of 3 lights are needed for the room to be usable. Suppose the lifetime of the brand of light bulbs fitted is exponentially distributed with a mean of 400 hours. Assume a seminar lasts exactly 1 hour, and that the lights are switched on only during the seminar. What is the probability that after 500 seminars, exactly 3 bulbs do not need to be replaced? You may need to use a calculator. Give your answer rounded to 4 decimal places.
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 1 Suppose that the current one-year rate and expected one-year T-bill rates over the following three years (i.e., years 2, 3, and 4, respectively) are as follows: IRI - 2.47%, E(2rl)-3.11%, E(3r1) = 4.23%, E(4r1)- 5.18% Using the unbiased expectations theory, calculate the current rate for three-year- maturity Treasury securities (Write your answer in percentage not decimal for example 5.78%) current rate for three-year-maturity 3.27%

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