Questions
Please answer the following. Its just true or false so grant me this please. The cost...

Please answer the following. Its just true or false so grant me this please.

The cost loaded schedule acts as a basis for the earned value analysis (EVA) - (T/F)?

The cost loaded schedule should include the summary from each draw, which is the total from column E and column F from each month's projected draw.   - (T/F)

Retainage should be deducted from the amount shown on the cost loaded schedule.   - (T/F)

To determine the cumulative percent complete for each month, add the percent complete this period to the cumulative percent completed in the previous month. - (T/F)

In: Finance

Kunra is located in Boston and produces cars. In the course of car production, Kunra releases...

Kunra is located in Boston and produces cars. In the course of car production, Kunra releases pollution as a negative externality into the atmosphere of Boston. Some of the pollution-related problems include skin cancer, contamination of drinking water, breathing epidemics, birth defects, and offensive odor. Sadly, Kunra does not do anything to bear the costs associated with the health and ecological problems Boston residents suffer. Interestingly, Kunra believes that Boston residents do not know about the problems and then leaves Boston residents to pay for the health and ecological problems they suffer from the pollution generated in the production of cars. What a rip-off against Boston residents!!! Kunra smiles home with huge profits. Kunra’s customers outside Boston feel satisfied with Kunra’s cars and organize events to praise the incredible quality of Kunra’s cars. Alas, Boston residents apparently turn out to be victims in the process of production and consumption of Kunra’s cars.

Suppose that you are a public administrator in Boston’s City Government, have trained in Economics for Public Administrators from Clark Atlanta University, and are working with the following marginal benefits and costs for Kunra’s car production, where Q is thousands of cars and P is price per car:

MPB (Marginal Private Benefit) = 120- 0.6Q (benefits to individual consumers of Kunra’s cars).

MPC (Marginal Private Cost) = 20 + 0.4Q (costs of producing cars by Kunra).

MEB (Marginal External Benefit) = 0 (an external benefit is a positive externality: car production benefits to Boston may include a healthy environment and healthy residents in Boston. In the current context, external benefits are zero).

MEC (Marginal External Cost) = 0.25Q (an external cost is a negative externality: health and ecological problems associated with the pollution generated by Kunra that affect Boston’s residents and environment).

Find the competitive equilibrium, Qc and Pc; the efficient equilibrium, Qe and Pe; and show the competitive equilibrium and the efficient equilibrium in the same graph that is properly labeled.

In: Economics

USE THREE DECIMALS FOR ALL OF THE ANSWERS. Health experts’ estimate for the sensitivity of coronavirus...

USE THREE DECIMALS FOR ALL OF THE ANSWERS.

Health experts’ estimate for the sensitivity of coronavirus tests, as they are actually used, is 0.7. They also think the specificity is very high. Suppose specificity is 0.99 and that the health experts’ estimated sensitivity is correct (0.7).

a. In a population where 20% of the population is infected with the coronavirus, what is the probability that a person who tests positive actually is infected?  

b. Continued. What is the probability that a person who tests negative actually is not infected?

In the US, testing initially was very selective. In other words, as of early April 2020, only patients (i) with symptoms (ii) who contacted the health care system were being tested. For the most part, tests were not obtainable on demand, and there was very limited testing of asymptomatic people, even if they had been in contact with someone who had tested positive.

When testing is selective, then for interpreting results of testing, what matters is not the fraction of the entire population who are infected, but rather the fraction of the tested population who are infected.

c. If the prevalence of infection in the tested population is 0.8 (in other words, if 80% of people tested have the infection), what is the probability that a person who tests positive actually is infected?

d. Continued. What is the probability that a person who tests negative actually is not infected?

What can you learn from comparing your answers to parts a and b with your answers to parts c and d? The article also makes this point:

“Dr. Smalley said a negative result is more likely to be accurate in places like Louisville where the prevalence is low, but could be virtually useless in New York, where it is high.”

In other words, Louisville’s situation is similar to parts a and b, and New York’s situation is similar to parts c and d (qualitatively).

Now let’s see what is implied by the study of Wuhan patients that the WSJ article describes. Here’s another quote:

“A February study of about 1,000 patients in Wuhan, China, who were hospitalized with suspected coronavirus there, where the pandemic began, found that about 60% tested positive using lab tests similar to those available in the U.S. But, almost 90% showed tell-tale signs of the virus in CT scans of their chests, the article, published in the journal Radiology, found, suggesting many patients in the group were testing negative despite active coronavirus infections.”

Here, the population is “patients hospitalized for something that seems like coronavirus”. In that population, 90% of people were infected (if we take the CT scans as definitive). But 60% of this population tested positive. Note that 60% is not the sensitivity of the test, because this includes people who were not infected and who tested positive.

e. Let’s “back out” the sensitivity of the test, instead of assuming a value for sensitivity. Using 0.9 as the prevalence of infection with Covid-19 in the tested population; using 0.99 as the specificity of the test (same as in the previous parts of this problem); and using 0.6 as the fraction of the population who tested positive, calculate the implied sensitivity of the test. HINT: Use the law of total probability.    

f. Continued. In this situation (in the situation of the Wuhan study), what is the probability that a patient who tested negative actually was not infected?

g. Suppose the goal was for the probability to be at least 0.75 that a patient who tested negative actually was not infected, in the conditions of the Wuhan study. What is the minimum value of sensitivity that would allow this goal to be achieved?

In: Statistics and Probability

ocument for Analysis: Poor Persuasive Request Going to Texas 7-Eleven Owners (Objs. 1, 2 and 3)...

ocument for Analysis: Poor Persuasive Request Going to Texas 7-Eleven Owners (Objs. 1, 2 and 3)

Your Task. Analyze the following poorly written persuasive e-mail request.

Make a list its weaknesses. Rewrite the email making the needed changes.

To:

7-Eleven Franchise Owners Association of Texas

From:

Terry Navarro <[email protected]>

Subject:

Plastic-Wrapped Fruit Not for Us!

Cc:

Bcc:

Hey, have you heard about this new thing coming at us? As a 7-Eleven franchise owner and member of the 7-Eleven Franchise Owners Association of Texas, I am seriously put off about this move to wrap our bananas in plastic. Sure, it would extend their shelf life to five days. And I know that our customers want yellow-not brown—bananas. But wrapping them in plastic?? I mentioned this at home, and my teenage daughter immediately turned up her nose and said, “A banana wrapped in plastic? Eeeyooo! Do we really need more plastic clogging up the environment?” She’s been studying sustainability and said that more plastic packaging is not a sustainable solution to our problem.

I realize that we 7-Eleven franchisees are increasingly dependent on fresh food sales as cigarette sales tank. But plastic-wrapped bananas is going too far, even if the wrapping slows ripening. As members of the 7-Eleven Franchise Owners Association, we have to do something. I think we could insist that our supplier Fresh Del Monte come up with a wrapper that’s biodegradable. On the other hand, extending the shelf life of bananas cuts the carbon footprint by cutting down all those deliveries to our stores.

We have a meeting of franchisees coming up on February 1. Let’s resist this banana thing!

Terry

10.14

Persuasive Claim: Hawaiian Toner Scam (Obj. 3)

Heather W. was new to her job as administrative assistant at the Waialae Country Club in Honolulu. Alone in the office one morning, she answered a phone call from Rick, who said he was the country club’s copier contractor. “Hey, look, Babydoll,” Rick purred, “the price on the toner you use is about to go way up. I can offer you a great price on this toner if you order right now.” Heather knew that the copy machine regularly needed toner, and she thought she should probably go ahead and place the order to save the country club some money. Then days later two bottles of toner arrived, and Heather was pleased at the perfect timing. The copy machine needed it right away. Three weeks later Maureen, the bookkeeper, called to report a bill from Copy Machine Specialists for $960.43 for two bottles of toner. “What’s going on here?” said Maureen. “We don’t purchase supplies from this company, and this price is totally off the charts!”

Heather spoke to the manager, Steven Tanaka, who immediately knew what had happened. He blamed himself for not training Heather. “Never, never order anything from a telephone solicitor, no matter how fast-talking or smooth he sounds,” warned Steven. He outlined an office policy for future supplies purchases. Only certain people can authorize or finalize a purchase, and purchases require a confirmed price including shipping costs settled in advance. But what to do about this $960.43 bill? The country club had already begun to use the toner, although the current copies were looking faint and streaked.

Your Task . As Steven Tanaka, decide how to respond to this obvious scam.

Should you pay the bill?

Should you return the unused bottle?

In: Operations Management

An Individual within late adulthood can have the chance to review and think about their experiences?...

An Individual within late adulthood can have the chance to review and think about their experiences?

Why do you think this is important?

What is the effect upon the individual?

In: Psychology

1. Compare and contrast (old tax law vs. new tax law) the individual mandate penalty. In...

1. Compare and contrast (old tax law vs. new tax law) the individual mandate penalty. In other words, what was it in 2017? What is it for 2019? 2. What was the standard deduction in 2017? What is it for 2019? 3. What individual deductions are no longer allowed for 2019? What individual deductions are allowed in 2019? 4. What personal exemptions are allowed in 2019 as compared to 2017?

In: Accounting

Q4. 4.1. Please draw supply and demand in perfectly competitive market and show the equilibrium 4.2....

Q4.

4.1. Please draw supply and demand in perfectly competitive market and show the equilibrium

4.2. Please draw an individual firm’s demand and supply curve in perfectly competitive market

4.3. Show the impact of new technology such as fracking in your graphs in 4.1. at the market level and   

4.2. at the individual firm level. Explain what happen to the price at the market level and costs at individual firm level.

In: Economics

Condition : . Turner Syndrome (45, XO) in XO individual (compare with typical XX) 1.a) compare...

Condition : . Turner Syndrome (45, XO) in XO individual (compare with typical XX)

1.a) compare what type of gonads develop in the condition you chose versus typical development of individual with the same genotype (sex chromosomes):

1.b) compare what type of internal genitals develop in the condition you chose versus typical development of individual with the same genotype (sex chromosomes):

In: Anatomy and Physiology

Assume that the age at onset of a certain disease is distributed normally with a mean...

Assume that the age at onset of a certain disease is distributed normally with a mean of 43 years and a variance of 177.69 years.

a) What is the probability that an individual afflicted with the disease developed it before age 31?
probability =  

b) What is the probability that an individual afflicted with the disease developed it after age 48?
probability =  

c) What is the probability that an individual afflicted with the disease developed it between ages 31 and 48?
probability =  

In: Math

It has been reported that men are more likely than women to participate in online auctions.


It has been reported that men are more likely than women to participate in online auctions. A recent study found that 52% of Internet shoppers are women and that 35% of Internet shoppers have participating in online auctions. Moreover, 25% of online shoppers were men and had participated in online auctions.

a) Construct the contingency table below. 

b) Given that an individual participates in online auctions, what is the probability that individual is a man? 

c) Given that an individual participates in online auctions, what is the probability that individual is a woman? 

d) Are gender and participation in online auctions independent? Explain using any two probability calculations based on the contingency table above.

In: Math