Define the following terms: Stationarity Heteroskedasticity Cointegration
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Define the following terms:
- Stationarity
- Heteroskedasticity
- Cointegration
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- If three of the quarterly seasonal indices for a set of data are 0.7,0.7, and 0.7, then the fourth seasonal index is equal to 1.4 a) TRUE b) FALSE Submit Answer format: Text The forecast with out seasonality is modeled as: Sales = 6 *t + 236.00, where t= time in months, beginning in January 2015. Seasonality for the first three months are given in the table below. Determine a seasonalized forecast for Feb of 2016. Month Seasonal Factor January 1.9000 February 0.6262 March 0.1000 Submit Answer format: Number: Round to: 1 decimal places.A research center claims that at least 23% of adults in a certain country think that their taxes will be audited. In a random sample of 900 adults in that country in a recent year, 20% say they are concerned that their taxes will be audited. At a= 0.05, is there enough evidence reject the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H, and H. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. Type an integer or a decimal. Do not round.) O A. The percentage of adults in the country who think that their taxes will be audited is not %. C B. At least 23 % of adults in the country think that their taxes will be audited. O C. Less than % of adults in the country think that their taxes will be audited. OD. % of adults in the country think that their taxes will be audited. Let p be the population proportion of successes, where a success is an adult in the country who thinks that…The Excel file (Forecasting Assignment Data) contains quarterly motorcycle shipments for Harley-Davidson from 2000 through 2006. Forecast Harley-Davidson quarterly motorcycle shipments for 2007 using winter's method
- Let's consider a supermarket with three cash registers. The operation of the cash registers is checked daily, and if a register is found to be faulty, it is sent to the workshop for repairs. The probability of a working cash register breaking down is 1/5, and the probability of a cash register undergoing repair becoming operational is 3/5. The processes of breakdown and repair of cash registers are independent of each other. 1. (25 pts) Model this problem using a discrete time Markov chain. Present the transition probability matrix. 2. (15 pts) What is the long-run proportion of days when none of the cash registers are operational?Consider the following data: Stock M N Average return 26% 16% Risk (Std. Dev.) 20% 10% If the return on stocks M and N are perfectly negatively correlated, what is the range of risk (std dev) associated with all possible portfolio combinations? A. Range of the risk: between 0= risk s10 % OB. Range of the risk: between 0 < risk 10% OC. Range of the risk: between 5% and 10%. OD. Range of the risk (std. dev): between 15% to 20% OE. None of the aboveBuilding Year of sale 1 2005 1 2005 2 2007 2007 2004 2007 2007 2008 2008 2008 ID Property # Area (ft.) Price 1030 11 Apartment 30 743.09 $ 246,172.68 1029 10 Apartment 29 756.21 $ 246,331.90 2002 7 Apartment 2 587.28 $ 209,280.91 2031 12 Apartment 31 1604.75 $ 452,667.01 1049 11 Apartment 49 1375.45 $ 467,083.31 3011 9 Apartment 11 675.19 $ 203,491.85 3026 9 Apartment 670.89 $ 212,520.83 3023 1 Apartment 720.81 $ 198,591.85 1031 6 Apartment $ 265,467.68 782.25 794.52 4023 3 Apartment $ 235,633.26 Customer Entity Name Surname Interval Gender Country State ID C0028 Individual Madalyn Mercer 19 18-25 F USA California Home C0027 Individual Lara Carrillo 22 18-25 F USA California Home C0112 Individual Donavan Flowers 22 18-25 M USA California Home C0160 Individual Darien Dorsey 22 18-25 M USA California Investment C0014 Individual Alessandra Perry 25 18-25 F USA California Home C0125 Individual Kaitlin Owen 26 26-35 F USA Virginia Investment C0125 Individual Kaitlin Owen 26 26-35 F USA…
- Please also provide the drawing of curve/rejection region for each item as shown on the examples. Thanks.The university administration has assembled the data for a twelve-month period pertaining to the monthly total costs of providing the service and the corresponding number of students who used the laundering facilities each month. You were recently taught how to use the Excel graphing tool and a member of the team successfully generated the scattergram given below from the data set provided. Total Laundering Costs 300,000 250,000 200,000 150,000 100,000 50,000 0 0 V + ANGLA RUSTON UNIVERSITY SCATTER DIAGRAM 500 1,000 1,500 Line of Best Fit # of Students Laundering 2,000 2,500 3,000 The other team members are now tasked to use the graph to provide the administrators with a detailed response to the following questions: a) What is another name for the "line of best fit" in Excel? What is the purpose of this line? b) Using the line of best fit", determine Angla Ruston University's fixed cost per month and the variable cost per student. (Use 0 & 2,500 students.) c) Based on the scatter gram,…b) The following table shows the results of a sample survey carried out by a fast-food restaurant to determine whether persons had noticed an improvement in its service in the last month Voting Results Sex Improvement Seen No Opinion No improvement Male 25 21 34 Female 16 38 16 i. How many people were in the survey? ii. A patron was selected at random from the sample. a) Determine the probability that the patron thought that there was an improvement in service. b) Determine the probability that the patron was a female or thought that there was no improvement in the service. c) Given that the patron thought there was an improvement, what is the probability that the patron was a male?
- Exercise 13-60 (Algo) (LO13-5) Waterbury Insurance Company wants to study the relationship between the amount of fire damage and the distance between the burning house and the nearest fire station. This information will be used in setting rates for insurance coverage. For a sample of 30 claims for the last year, the director of the actuarial department determined the distance from the fire station (x) and the amount of fire damage, in thousands of dollars (y). The MegaStat output is reported here: ANOVA table Source SS df MS F Regression 1,835.5782 1 1,835.5782 40.4537 Residual 1,270.4934 28 45.3748 Total 3,106.0716 29 Regression output Variables Coefficients Std. Error t(df=28) Intercept 14 3.1125 2.34 Distance–X 6 0.8778 6.36 Click here for the Excel Data File a-1. Determine the regression equation. (Round your answers to 3 decimal places.) a-2. Is there a direct or indirect relationship between the distance from…A research center claims that at least 30% of adults in a certain country think that their taxes will be audited. In a random sample of 900 adults in that country in a recent year, 25% say they are concerned that their taxes will be audited. At a=0.01, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H, and H, a Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) % of adults in the country think that their taxes will be audited. OB. Less than % of adults in the country think that their taxes will be audited. irar C At least 30 % of adults in the country think that their taxes will be audited. D. The percentage of adults in the country who think that their taxes will be audited is not %. Copy ager Let p be the population proportion of successes, where a success is an adult in the country who thinks…Again recall Table 8a from the working paper "The Market for Financial Advisor Misconduct" discussed in Lecture 7 and HW 7. For your convenience, the table is reproduced below. Table 8a. Consequences of Misconduct: Industry and Firm Discipline No Misconduct Misconduct Remain with the Firm 81.29% 51.99% Leave the Firm 18.71% 48.01% Leave the Industry 8.92% 26.96% Join a Different Firm (within 1 year) 21.05% 9.79% Note: Table 8a displays the average annual job turnover among financial advisers over the period 2005-2015. The table shows, on average, the percentage of advisers that remain with their firm, leave the industry (for at least one year) or join a new firm (within a year). The job transitions are broken down by whether or not the advisor was disciplined for misconduct in the previous year. Consider randomly selecting five financial advisors who were disciplined for misconduct in the previous year. What is the chance that at least one of them leaves the firm? (Answer as a…