2. Table below records the quarterly refrigerator sales for the period 2012-2014. Number of 2 3 purchases 2012 46 41 60 63 2013 56 52 66 72 2014 58 56 75 76 a) Find the trend equation using the least squares method. b) Forecast the sales for the 1" quarter of 2015.
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- Define the Distributed Lag Model with Additional Lags and AR(p) Errors?The shape of the mean-variance frontier that results from the combination of a riskless and arisky asset is…..:a. Is U-shaped, tilted 90 degrees clockwise.b. Is a straight line passing from the mean-variance points of the two assets.c. Is a hyperbola.d. Consists of two straight lines, each connecting one of the two assets to a risk-freeportfolioHow many indicator variables would be included in the model in order to prevent the least squares estimation from failing?
- Ex[lain the Two Stage Least Squares Estimator?If the data analyst hypothesizes that grocery sales are higher when payment is made using credit cards compared to cash payment, the null hypothesis would likely state that grocery sales are lower when payment is made using credit cards compared to cash payment. T/FExplain in detail the approach of Weighted Least Square used by applied economiststo address heteroskedasticity in empirical work.
- In terms of the model parameters, state the null hypothesis that, after controlling for sales and roe, ros has no effect on CEO salary. State the alternative that better stock market performance increases a CEO’s salary.It is about the differantial equations...Suppose that a firm can produce a part it uses for $520 per unit, with a fixed cost of $25,000. The company has been offered a contract from a supplier that allows it to purchase the part at a cost of $544 per unit, which includes transportation. The key outputs in the model are the difference in these costs and the decision that results in the lower cost. Assume that the production volume is uncertain. Suppose the manufacturer has enough data and information to estimate that the production volume will be normally distributed with a mean of 1,000 and a standard deviation of 85. Use a 100-trial Monte Carlo simulation to find the average cost difference and percent of trials that result in manufacturing or outsourcing as the best decision. Please include table showing both the cost difference and decision for each trial. Please include the Excel worksheet with all the details with your answer.
- Some financial theoreticians believe that the stock market’s daily prices constitute a “random walk with positive drift”. If this is accurate, then the Dow Jones Industrial average should show a gain on more than 50 percent of all trading days. If the average increased on 101 of 175 randomly chosen days, what do you think about the suggested theory? use a 0.01 level of significance.The researchers reported:" A 2x2 ANOVA revealed, first of all, a main effect for depletion, indicating that depleted individuals generated less ideas (M = 9.40, SD = 5.64) than non-depleted individuals (M = 12.44, SD = 7.34), F (1, 108) = 6.03, p = .016, n2 = .05. This effect was qualified by the expected interaction with [perseverance], F (1,108) = 4.52, p = .036, n2 = .05". What size are the effects for the main effect of depletion and for the interaction between depletion and perseverance, according to Cohen's conventions? a. These are small- to -medium effects b. These are non existent effects c. These are large effects d. We are unable to tell from from the n2 / r2 statisticsData released by the Department of Education regarding the rate (percentage) of ninth-grade students that don't graduate showed that out of 50 states, 11 states had an increase in the dropout rate during the past 2 years. 13 states had a dropout rate of at least 30% during the past 2 years. 21 states had an increase in the dropout rate and/or a dropout rate of at least 30% during the past 2 years. How many states had a dropout rate that was less than 30% but that had increased over the 2-year period?