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- .A new, miracle diabetes drug that diminishes major symptoms of diabetes has been approved by the FDA. Health care professionals and researchers believe that the new drug will prolong lifespan of diabetes patients. If the population is in steady state and the incidence is constant, what will the effect of this new drug be on the prevalence of diabetes in the population? Explain.The Agri-Food Company has been in business for five years. Brian, the firm's owner, wants to develop a forecast of olive oil sales for the coming year (i.e., 2025) based on the following historical data: Year 2020 2021 2022 2023 2024 Sales 10 20 40 55 75 1. Forecast sales for 2025 using the 3-year moving average method. 2. Forecast sales for 2025 using the simple exponential smoothing method with a smoothing constant of a=0.6. 3. Forecast sales for 2025 using the simple linear trend method.The survivorship curve indicated by the graph best represents a curve, and is common in populations of Life Stage O a. Type l, marine invertebrates O b. Type Il, fishes Oc. Type l, humans o d. Type II, birds O e. Type l, plants % Surviving
- State University has increased its tuition for in-state and out-of-state students in each of the past 5 years to offset cuts in its budget allocation from the state legislature. The university administration always thought that the number of applications received was independent of tuition; however, drops in applications and enrollments the past 2 years have proved this theory to be wrong. University admissions officials have developed the following relationships between the number of applicants who accept admission and enter State and the cost of tuition per semester (in-state) (out-of-state) The university would like to develop a planning model that will indicate the in-state and out-of-state tuitions, as well as the number of students that could be expected to enroll in the freshman class. The university doesn’t have enough classroom space for more than 1,400 freshmen, and it needs at least 700 freshmen to meet all its class-size x2 = 35,000 - 6t2 x1 = 21,000 - 12t1 (xi) (ti):…Forecasting: 1. How does the number of periods in moving average affect the responsiveness of the forecast? 2. Contrast the terms sales and demand. 3. KA commercial bakery has recorded sales (in dezens) for three products, as shown below: Blueberry MuHins Cinnamon Buns Day Cupcakes 30 18 45 34 17 26 32 19 27 34 23 35 2 22 30 23 48 23 29 34 36 25. 20 29 24 14 10 31 26 18 35 31 11 27 47 28 26 27 37 34 13 14 31 24 15 33 33 22 a. Predict orders for the following day for cach of the products using an appropriate naive method. b What should the use of sales data instead of demand imply. RNN N N N H.NM pDiscuss two extensions to the original GARCH (p,q) model and explain additional characteristics of financial data they might be able to capture.
- 3. Life ExpectancyWe have considered a regression equation to predict life expectancy from percent of government expenditure on health care, using data for a sample of 50 countries in SampCountries. Using technology and this dataset, find a 95% prediction interval for each of the following situations. (a) A country which puts only 3% of its expenditure into health care. Round your answers to one decimal place. (b) A country which puts 10% of its expenditure into health care. Round your answers to two decimal places. (c) A country which puts 50% of its expenditure into health care. Round your answers to two decimal places. Country Health LifeExpectancy Iceland 15.76 83.1 Kazakhstan 10.90 70.5 Lesotho 14.48 49.3 Uzbekistan 9.68 68.2 Peru 14.75 74.8 Iraq 5.99 69.5 Nicaragua 20.89 74.8 Zambia 12.57 58.1 Guinea-Bissau 7.79 54.3 Romania 12.17 74.5 United States 20.71 78.8 Sierra Leone 11.41 45.6 Malta 13.29 80.7 Luxembourg 13.64 81.8 Micronesia, Fed. Sts.…rience. Question Three The following data represent the net profits made by a sample of 25 companies that operate in real-state sector. 56 97 78 61 79 93 84 76 58 92 89 96 42 44 85 77 53 88 62 84 62 82 75 95 89 1) Choose the best graphical presentation and justify your answer. 2) Based on your answer in (1), construct the selected graphical presentation and comment on the results. Based on your answer in (2), do you think the sector performance is satisfactory? Justify your answer.If a forecaster wanted to choose a forecasting model that avoided having a large forecasting error in any given period, which error metric should they use when evaluating their forecasting options? CFE O AFE MAD MAPE O MSE
- An entrepreneur who owns and operates two businesses (A and B) would like to analyze their profitability. They would like your help in the analysis. They give you the annual net profit (in thousands of $) for each business from 2008-2020. Table 1: Annual Net Profits for Businesses A and B Business Year Profit Business Year Profit 2008 -50 2008 -10 2009 57 2009 30 2010 71 2010 27 2011 64 2011 22 2012 60 2012 21 2013 50 2013 20 A 2014 41 2014 24 2015 59 2015 24 2016 71 2016 32 2017 71 2017 36 2018 74 2018 37 019 81 20 40 2020 97 2020 49 a. Suppose you want to graph the distribution of profits. Explain why using only one stem- plot might not be optimal for the analysis. b. Describe the correct stemplot to use. Generate this stemplot. Explain your steps. What can you say about the distribution from this stemplot? c. When are stemplots useful? And why is that? d. Suppose that instead of having 26 observations you have 200 observations. What graph should you generate? e. What other type of…a. construct an econometric model that exhibits positive correlation between stock prices up to order 3 .the model should also exhibit the clustering of volatility. The model should also show the incorporation of information from infinite order of lag error terms? what is the name of this model?