IMG_4196

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

8.

1

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…

Exercise A.4. Explain what is the market power of a company. How can it be measured? What does it depend on? Graphically represent two companies, one with high market power and one with low market power.

Don't copy give original answer

p The Graduate Management Admission Test (GMAT) is a standardized exam used by many universities as part of the assessment for admission to graduate study in business. The average GMAT score is 547 (Magoosh website). Assume that GMAT scores are bell-shaped with a standard deviation of 100. Use the empirical rule to answer the following. a. What percentage of GMAT scores are 647 or higher (to 1 decimal)? % b. What percentage of GMAT scores are 747 or higher (to 1 decimal)? c. What percentage of GMAT scores are between 447 and 547 (to 1 decimal)? d. What percentage of GMAT scores are between 347 and 647 (to 1 decimal)?

Explain Standard errors for TSLS (two stage least squares)?

The goal of the consumer is to maximize the total utility or satisfaction derived from their purchase choices, given the unique budget constraint. To calculate total utility of a given combination of T- shirts and movies, one would use the following approach: Group of answer choices Use utils as a measure of utility, assigning a specific number to T-shirts and movies, and then add those together. For a given combination of T-shirts and movies, survey a group of individuals to determine an average for utils to be assigned to the number of T-shirts and movies. For a given combination of T-shirts and movies, assign a number of utils to that combination. For a given combination of T-shirts and movies, use Google to identify the number of utils associated with the number of T-shirts and movies and then sum them.

A researcher wants to study about the behaviours of postgraduate students in Australia in mobile phone usage.  One of the goals of the study is to analyse whether there is a relationship between the amount of time they spend using the mobile phone and their gender.  What are the two variables involved to achieve that goal?

Owkskdmd

The results of a national survey showed that on average, adults sleep 6.9 hours per night. Suppose that the standard deviation is 1.2 hours. Round your answers to the nearest whole number. Use Chebyshev's theorem to calculate the percentage of individuals who sleep between 4.5 and 9.3 hours. At least Use Chebyshev's theorem to calculate the percentage of individuals who sleep between 3.9 and 9.9 hours. At least Assume that the number of hours of sleep follows a bell-shaped distribution. Use the empirical rule to calculate the percentage of individuals who sleep between 4.5 and 9.3 hours per day. At least How does this result compare to the value that you obtained using Chebyshev's theorem in part (a)?

Exercise 2.2. 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 took 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 personal policy and…

Is there any graph that can support this answer?

In your own words, describe what the difference is between an error term and a residual. How does sample size affect the variance of each?

ASAP Exercise 7-48 (Algo) (LO7-3) According to a government study among adults in the 25- to 34-year age group, the mean amount spent per year on reading and entertainment is $2,125. Assume that the distribution of the amounts spent follows the normal distribution with a standard deviation of $439. (Round your z-score computation to 2 decimal places and final answers to 2 decimal places.) a. What percent of the adults spend more than $2,400 per year on reading and entertainment? b. What percent spend between $2,400 and $3,400 per year on reading and entertainment? c. What percent spend less than $1,000 per year on reading and entertainment?

13. The government wishes to model the number of calls made to a particular citizen's advice helpline. Over the last month they estimate that there have been on average 1.8 calls/hour. What distribution would be best to model this random variable? O Normal Distribution O Poisson Distribution O Binomial Distribution O Uniform Distribution O T-Distribution

2. A city had an unemployment rate of 7%. The mayor pledged to lower this figure and supported programs to decrease unemployment. A group of citizens wanted to test with 0.032 label of significance if the unemployment rate had actually decreased, so they obtained a random sample of 500 citizens to see what proportion of the sample was unemployed. Only 32 citizens in the above sample is still unemployed. What is the probability of Type II error if the actual unemployment rate is 6.5% please don't use software everything needs to be done by hand. Explain because I don't understand my professor. Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.

ASAP PLZ

Firms in India are losing productivity because of Facebook. Office staff are spending too long on the social networking site. According to The Associated Chambers of Commerce and Industry (Assocham) employees use Orkut, Facebook, Myspace, and Linkedin for "romancing" and other purposes. On average, employees spend an hour a day on sites like Facebook. This reduces productivity by 12.5%. Nearly half of office employees accessed Facebook during work time. Some 83% saw nothing wrong in surfing at work during office hours. In September 2009 Portsmouth City Council in England banned staff from accessing Facebook on its computers when it was discovered that they spent, on average, 400 hours on the site every month. Analyze the possible consequences for businesses in India of banning access to Facebook and other social networking sites.

Firms in India are losing productivity because of Facebook. Office staff are spending too long on the social networking site. According to The Associated Chambers of Commerce and Industry (Assocham) employees use Orkut, Facebook, Myspace, and Linkedin for "romancing" and other purposes. On average, employees spend an hour a day on sites like Facebook. This reduces productivity by 12.5%. Nearly half of office employees accessed Facebook during work time. Some 83% saw nothing wrong in surfing at work during office hours. In September 2009 Portsmouth City Council in England banned staff from accessing Facebook on its computers when it was discovered that they spent, on average, 400 hours on the site every month.   Analyze the impact on a fall in productivity on costs.

Firms in India are losing productivity because of Facebook. Office staff are spending too long on the social networking site. According to The Associated Chambers of Commerce and Industry (Assocham) employees use Orkut, Facebook, Myspace, and Linkedin for "romancing" and other purposes. On average, employees spend an hour a day on sites like Facebook. This reduces productivity by 12.5%. Nearly half of office employees accessed Facebook during work time. Some 83% saw nothing wrong in surfing at work during office hours. In September 2009 Portsmouth City Council in England banned staff from accessing Facebook on its computers when it was discovered that they spent, on average, 400 hours on the site every month. Question What is meant by productivity? Analyze the impact on a fall in productivity on costs. Analyze the possible consequences for businesses in India of banning access to Facebook and other social networking sites. Do you think access should be denied?

Shack Homebuilders Limited is evaluating a new promotional campaign that could increase home sales. Possible outcomes and probabilities of the outcomes are shown next. Possible Outcomes Ineffective campaign Normal response Extremely effective Additional Sales in Coefficient of variation Units 50 70 130 Probabilities 0.40 0.30 0.30 Compute the coefficient of variation. Note: Do not round intermediate calculations. Round your answer to 3 decimal places.

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…

The average marks on an Economics Assignment is 55%, with a standard deviation of 5%. The Examiners note that the distribution of the marks is normal. A. Define 'Normal Distribution' including key properties and illustrate with a diagram.  What is the proportion of frequencies below 35%?  What is the proportion of frequencies above 80%?  What is the proportion of marks between 40% and 70% ?

ii) Suppose that you find out that you have an OLS estimator which is unbiased but has a non-minimum variance. Discuss two practical steps that you take to reduce the variance of your OLS estimator. Explain your reasoning.

11

Define the Ordinary Least Squares Estimator? how OLS Estimates the Relationship Between Test Scores and the Student–Teacher Ratio?

What is “nonresponse”? Identify four types of nonresponse in surveys.

According to Wine-Searcher, wine critics generally use a wine-scoring scale to communicate their opinions on the relative quality of wines. Wine scores range from 0 to 100, with a score of 95 – 100 indicating a great wine, 90 – 94 indicating an outstanding wine, 85 – 89 indicating a very good wine, 80 – 84 indicating a good wine, 75 - 79 indicating a mediocre wine, and below 75 indicating that the wine is not recommended. Random ratings of a pinot noir recently produced by a newly established vineyard in 2018 follow: Excel File: data07-11.xlsx 87 91 86 82 72 91 60 77 80 79 83 96 a. Develop a point estimate of mean wine score for this pinot noir (to 2 decimals). b. Develop a point estimate of the standard deviation for wine scores received by this pinot noir (to 4 decimals).

Give typing answer with explanation and conclusion

Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.

Solve only if all subparts

2x+3z = 5 and 3x+2z = 5. The value of both x and z is A/