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The presence of Heteroscedasticity can be investigated by using... .

A large company in the communication and publishing industry hs quantified the relationship between the price of one of its products and the demand for this product as Price = 160 -0.01 xDemand for an annual printing of this particular product. The foxed costs per year (ie. per printing) = $4T 000 and the variable cost per unit = $35. What is the maximum profit that can be achieved? What is the unit price at this point of optimal demand? Demand is not expected to be more than 7,000 units per year. The maximum profit that can be achieved is S. (Round to the nearest dolar.) The unit price at the point of optimal demand is S per unit (Round to the nearest cent)

QUESTION 2 You work for a big retail chain that operates in a large number of regional markets and you want to investigate the effect of increased marketing spending on sales. You randomly select half of the markets and increase the marketing budget in these markets by 10%. The rest of the markets are allocated the same marketing budget as before. Then comparing the average sales in the markets with increased marketing budget and average sales in the remaining markets will give an unbiased estimate of the true causal effect of increased marketing spending on sales. True O False

What is the variance of u conditional on income, var(ulinc)? Consider the following savings model: Where inc = income and sav = savings A. var(inche) B. incvar(e) C. var(sqrt(inc)) D. var(e) sav= Bo + B₁inc + u, u = √inc * e

q7-  Which statement is incorrect for statistical independence between X and Y? Select one: a. The occurence of Y has no impact on the probability for the occurence of X b. If X and Y occur jointly, it is purely by chance c. The correlation between X and Y is 0 d. The correlation between X and Y is 1

A company has established that the relationship between the sales price for one of its products and the quanlity sokld per month is approximalely p=75-0. 1D (D is the demand or quantity sold per month and p is the price in dollars). The fixed cost is $1,000 per month and the variable cost is $30 per unit produced. a. What is the maximum profit per month for this product? b. What is the range of profitable demand during a month? a. The maximum profit per month for this product is $. (Round to the nearest dollar.) b. The range of profitable demand during a month is from units to units. (Round up the lower limit and down the upper limit to the nearest whole number.)

Data 1:*2008 and 2013 National Demographic Health Survey showed that the percentage of womenage 15- 19 who had a live birth or is pregnant with first child had increased from 9.9% - 10.1% inthe country.*In Region 1, the percentage of women age fifteen 15 - 24 who havebegun childbearing also increased from 26% - 29%. This was attributed to the following riskybehaviors identified by the adolescents during the Regional Adolescent Congress: Early sex,Substance abuse, Pornography, VAWC (rape case), Fraternities (bad gangs) & Prostitution. Questions:1. What is the impact of the given data to mortality and morbidity rate of adolescent population? 2. What is the impact of the given data to mortality and morbidity rate of neonatal population? 3. Give at least 3 social determinants of health which are contributory factors leading to the datapresented and justify..

A potential customer has described the following scenario to you:We need to keep track of the data that our manufacturing firm needs to run smoothly.We make a number of products, each of which is manufactured by a different de-partment. Products are made up of a number of parts. Parts are bought fromsuppliers.You have been asked to perform a preliminary analysis of the scenario:a) Identify four sets of values from the scenario. b) Identify three relations from the scenario. c) Draw an entity-relationship diagram to visualise the sets and relations you have identi-fied. d) Use the relations you identified in part b) to define the following:i) A relation that records the parts that a department needs. ii) A relation that records the suppliers that a department deals with

Context : The London Metro Bus is crowded for travel during peak hours. During such travel hours two daily passengers ‘James’ and ‘Robert’ enter the Metro. Luckily, two adjacent seats are free in the bus. Each of them must decide whether to sit or stand. For both, sitting alone is more comfortable than sitting next to the other person, which in turn is more comfortable than standing. Question : Assume that both ‘James’ and ‘Robert’ are altruistic, ranking outcomes according to the other person’s comfort and, out of politeness, prefer to stand than to sit if the other person stands. Model the situation as a strategic game and find any Nash equilibrium (equilibria) if it exists. Does a dominant strategy exist for either ‘James’ or ‘Robert’ with these preferences?  show ALL steps and working in support to your answer

What is the difference between univariate and multivariate analysis? Give an example for when a univariate analysis might be used and an example of when we use multivariate analysis.

Explain whether the empirical evidence supports the claim that “investors are solely concerned with mean and variance”

Question 2 A new digital file of lectures on the topic of intermediate microeconomics is being marketed on the Internet as a resource to prepare for the final exam. As an experiment, the marketing firm wants to direct half of Web hits to a page that advertises the lectures as a resource that provide a 90% probability of successfully passing the final exam, while the other half are directed to a page that advertises the lectures as a resource that provide a 10% probability of failing to pass the final exam. Would you expect equal numbers of sales from the two advertising approaches? Explain and use the appropriate concepts to answer the question, demonstrating your critical understanding of the relevant course material.

Jackson invested $750 into a savings bond that earned 3% interest each month. At the same time, he also began saving money in a savings account. The value of the savings account is represented by f(x)=1,000+25x, where x represents the Number of months since the account was opened. At the end how many months did the value of the savings bond first begin to exceed the value of the savings account?

What is sampling? Explain the differences between probability and nonprobability samples and identify the various typesof each

(a) The sales of a book publication are expected to grow according to the functionS = 300000(1 − e−0.06t), where t is the time, given in days.(i) Show using differentiation that the sales never attains an exact maximum value.(ii) What is the limiting value approached by the sales function?(b) A poll commissioned by a politician estimates that t days after he makes a statementdenegrating women,the percentage of his constituency (those who support him at the time hemade the statement) that still supports him is given by S(t) =75(t2 − 3t + 25)t2 + 3t + 25The election is 10 days after he made the statement.(i) If the derivative S’(t) may be thought of as an approval rate, derivate the a functionfor his approval rate.(ii) When was his support at its lowest level?(iii) What was his minimum support level?(iv) Was the approval rate positive or negative on the date of the election?(c) Lara offers 100 autograph bats. If each is priced at p dollars, it is that the demand curvefor the bast will be…

Exercise 3.2 A three-man board, composed of A, B, and C, has held hearings on a personnel case involving an officer of the company. This officer was scheduled for promotion but, prior to final action on his promotion, he made a decision that cost the company a good deal of money. The question is whether he should be (1) promoted anyway, (2) denied the promotion, or (3) fired. The board has discussed the matter at length and is unable to reach unanimous agreement. In the course of the discussion it has become clear to all three of them that their separate opinions are as follows: • A considers the officer to have been a victim of bad luck, not bad judgment, and wants to go ahead and promote him but, failing that, would keep him rather than fire him. ⚫ B considers the mistake serious enough to bar promotion altogether; he'd prefer to keep the officer, denying promotion, but would rather fire than promote him. ⚫ C thinks the man ought to be fired but, in terms of personnel policy and…

QUESTION 10 YouTube generates revenue by showing ads to consumers who watch videos on its website. Suppose that, for each person watching a video, YouTube receives one dollar in ad revenues (P=1). Arthur is a professional video-game player. He plays the video-game "Fortnite" and uploads his video to YouTube. The number of people who will watch his video depends on Arthur's effort producing the video and increasing its quality. The number Q of viewers as a function of Arthur's effort "e" is given by the function Q= Be. Arthur's offort cost is 202. His utility equals his income minus ys effort cost. To give incentives to Arthur to create better videos and attract more viewers, YouTube decides to pay Arthur a bonus b for each person watching his video. YouTube also has an operational cost 30 Operational cost - 32 which is the cost of maintaining its internet servers and administrative staff. YouTube's profit equals the ad revenue minus the payment to Arthur and the operational cost. Find…

Business and consumer marketers use the same set of variables to segment their markets Select one: True False

1. The old adage “time is money” comes into play here, too, as saving time is often tantamount to reducing costs. (10 sentences) 2. Downside of cost cutting or cost minimization (10 sentences) 3. What is Budget Vs. Actual? Why is it Important? What Causes the Variance? What is the implication of having a good variance-analysis in the company? (10 sentences)

FIVE. Which of the following is true about standard deviation?     The first step in calculating the standard deviation is calculating the square root.   The second step in calculating the standard deviation is to subtract each measurement from the intermediate value and then square that difference.   The last step in calculating the standard deviation is to sum the squared values and divide by the number of values minus one.   Standard deviation is a type of average where the positive and negative numbers sum to zero.   The amount of difference of the measurements from the central value is called the sample standard deviation.

Shrinkage estimators     are unbiased.     are BLUE (i.e. Best Linear Unbiased Estimator).     in general have a causal interpretation.     shrink the estimator.

How would the answer change if w = 5. (see image attached)

Recently the pharmaceutical company Mylan attempted a hostile takeover of Recently the pharmaceutical company Mylan attempted a hostile takeover of generic drugmaker Perrigo. Perrigo reported a net loss the year before the attempted takeover, which was partially driven by a spike in administrative expenses. Suppose that Mylan perceives there is a 70 percent probability that Perrigo’s loss is merely the transitory result of administrative expenses needed to fight the takeover. In this case, the present value of Perrigo’s stream of profits is $30 billion. However, Mylan perceives that there is a 30 percent chance that Perrigo’s net loss stems from long-term structural changes in the demand for Perrigo’s services, and that the present value of its profit stream is only $6 billion. You are a decision maker at Mylan and know that your current takeover bid is $21 billion. You have just learned that a rival bidder-Abbott Laboratories-perceives that there…

A law school is trying to gain a better understanding of the determinants of bar passage rates. Suppose that they the following facts were uncovered: 1. The probability with which a randomly selected graduate has received an A in Economic Foundations of Legal Studies (EFLS) is 0.3;2. The probability with which a randomly selected graduate has passed the bar exam is 0.81;3. The probability with which a randomly selected graduate has received an A in EFLS and has passed the bar exam is 0.27. Which of the following statements is true regarding the events X and Y, defined as follows: X = “a randomly selected graduate having received an A in EFLS”; andY = “a randomly selected student having passed the bar exam”? A) X and Y are independent events, and this can be verified by noting that P(X|Y) = 0.3.B) X and Y are not independent events, and this can be verified by noting that P(X|Y) = 0.3.C) X and Y are not independent events, and this can be verified by noting that P(X|Y) =.333.D) X and Y…

Q1: You are a juror contemplating your verdict on a criminal case. Based on all of the evidence you have heard, you estimate the probability of the accused being guilty at 80%. Your valuation of the four possible outcomes (conviction or acquittal of an actually guilty or an actually innocent person) is as follows: Outcome of Trial Convicted Acquitted Reality Guilty 1 -10 Innocent -100 1 (a) Show that your optimal action is to vote for acquittal. (b) How high must your estimate of the probability of guilt be before your optimal action will become voting for conviction?

how to calulate the fixed overhead spending variance?

Question asked in two parts. Please help with the bolded questions. The demand for a commodity is given by Q = β0 + β1P + u, where Q denotes quantity, P denotes price, and u denotes factors other than price that determine demand. Supply for the commodity is given by Q = g0 + g1P + v, where v denotes factors other than price that determine supply. Suppose u and v both have a mean of 0, have standard deviations su and sv, respectively, and are mutually uncorrelated.a) Solve the two simultaneous equations to show how Q and P depend on u and v.b) Derive the means of P and Q.c) Derive the variance of P, the variance of Q, and the covariance between Q and P.d) A random sample of observations of (Qi, Pi) is collected, and Q is regressed on Pi. (Thatis, Qi is the regressand, and Pi is the regressor.) Suppose the sample is very largei) Use your answers to (b) and (c) to derive values of the regression coefficient.[Hint: Use Equations (4.7) and (4.8) in Stock and Watson’s book.]ii) A researcher…

Previous answer was absolutely incorru

Organization Development is a planned change discipline concerned with applying behavioral science knowledge and practice to help organizations achieve greater effectiveness.  In this course, you will conduct an analysis of your organization with the goal of creating a plan to improve an aspect of your organization’s performance. Each unit will build on the previous complete to achieve the goal. Organization Development is a planned change discipline concerned with applying behavioral science knowledge and practice to help organizations achieve greater effectiveness. To complete the performance analysis as it will score 3 different categories: (1) capability, (2) motivation, and (3) support system. That is done by assigning a number (1-10) for each factor and then multiplying them. One (1) is the lowest score where work is needed to improve and Ten (10) is the highest number where you have excelled. Capability Score. Assign a number between 1 and 10. Explain and elaborate on how…

Qd=250-2P+5Y Qs= 100-4P+2A Y=12, A=4   a. Is Qd endogenous or exogenous?  b. Is P endogenous or exogenous? c. Is A exogenous or exogenous?

Problem 2. (SW 12.8.) Consider a product market with a supply function Q₁ =B₁ + B₁P₁ + už, a demand function Q 7o+u, and an equilibrium condition Q = Q, where u and u are mutually independent i.i.d. random variables, both with a mean of 0. = (a) Show that P; and us are correlated. (b) Show that the OLS estimator of 3₁ is inconsistent. Hint: The standard strategy for showing inconsistency: first, argue that ₁ will Var(P) converge in large samples to Co(P), second, use OLS calculations to show that Cov(Q³,P) # B₁. Var(P) (c) How would you estimate Bo, B₁, and %0?

Please solve questions 15, 16 and 17.  The multivariate demand function below will be needed for questions 12-18.   Setting: Grapple, Inc. is a leading seller of laptop personal computers.  However, they want to become a leading tablet seller, too.  Your marketing department, aided by your economics staff, has estimated a function to help you in the quest for market leader in tablets.  The variables are defined after the function. Qg = 10000 - 25Pg + 20Ph + 30Pr - 15dv - 35Psc - 10Pmm + 0.05Ag + 0.03A -25C + 0.1Y                Qg = the number of Grapple tablet computers demanded per week.   Pg = the price of each new Grapple tablet (in $).   Ph = the price of each Hewpaq tablet (in $).   Pr = the price of each Ronova tablet.   Pdv = the price to equip a tablet with Holographic digital video (in $, this is an upgrade option that enables three-dimensional graphics on a tablet.  Two-dimensional graphics is standard equipment).   Psc = the price of various screen sizes (in $, a 8 inch is…