After examining these data for all the jurisdictions, someone notes that certain areas have an unusually high “percent of 18-64 yr-olds with no high school diploma.” Based on this finding, this individual concludes that the high percentages are due to the rising population of immigrants in those areas. Further, the individual argues that any estimates of the associated “percent of low-income working families” in those areas should be recalculated after removing this sub-population from the data set, as they are causing the area to “look bad”. In addition to thinking critically, use the key rules about linear regression and extrapolation to write a statistically appropriate and socially responsible response to the individual’s conclusion and argument.

After examining these data for all the jurisdictions, someone notes that certain areas have an unusually high “percent of 18-64 yr-olds with no high school diploma.” Based on this finding, this individual concludes that the high percentages are due to the rising population of immigrants in those areas. Further, the individual argues that any estimates of the associated “percent of low-income working families” in those areas should be recalculated after removing this sub-population from the data set, as they are causing the area to “look bad”. In addition to thinking critically, use the key rules about linear regression and extrapolation to write a statistically appropriate and socially responsible response to the individual’s conclusion and argument.

Consider a proposed project in which an initial investment of $10 million would produce an annual financial benefit of $3 million. The project is intended to improve water quality and increase the efficiency of the water delivery system in the region.The financial benefits relate to two factors:

. There would be less leakage in the pipes used to transport water to the city from the reservoir.
. The proposed treatment program would be more efficient.

The life of the project is expected to be 100 years. Two-thirds of investment is related to replacing the pipes to eliminate the leakage, while the rest is related to upgrading the treatment facility. The project would be financed either by selling bonds or borrowing money from a local bank; either way, the annual interest rate would be about 4–5%. A hearing has been scheduled for the project, and several speakers have been asked to present their viewpoints. What is the main point that you expect each of the following people to make at the hearing?
a. A banker whose bank has made many loans to the city to finance a variety of projects. (The banker is known to prefer projects whose financial benefits are sufficient to cover the financial costs of the investment.)
b. An environmental advocate who recently wrote an article entitled ‘‘Discounting Is Unethical—We Must Not Overlook Benefits to Future Generations.’’
c. A doctor who believes that the new water treatment system will lead to a measurable improvement in health for the region.
d. A farmer whose crops depend upon a reliable supply of water
e. A politician who is in the midst of an election campaign; his slogan is ‘‘It’s high time for low taxes.’’
f. His opponent, whose slogan is ‘‘Build now for our children and for their children.’’
g. A civil engineer at the local university who recently completed a study of the water supply system. (Among the results of the study was a finding that two major leaks caused 80% of the loss of water; these leaks could be fixed for less than $5 million, and the rest of the system should continue in reasonable condition for another 20–30 years.)

h. The chair of a citizen’s advisory committee that advises the mayor on all major infrastructure projects that involve use of taxes to cover operations or investment. (This group used the federally recommended discount rate of 7% to determine that the benefits of $3 million per year over the life of the project would have a present value of more than $40 million.)

i. Finally, since you are related to the mayor and you are known to be an excellent student with an interest in infrastructure, you have been asked to listen to all of the previous speakers and summarize what you feel should be done.

The managers of three different supermarkets in the US desire to test the effectiveness of a new store design on sales. The manager of supermarket A decides to let store directors choose on their own whether they judge appropriate to implement the new design. The manager of supermarket B randomly chooses stores to assign the new design. The manager of supermarket C randomly draws stores in each US State separately.

(a) State whether each of the three experimental designs is observational or experimental, providing an explanation.

(b) Which experimental design is implemented in each of the three studies?

(c) Which kind of bias will arise from design A? Why?

(d) Compare the quality of statistical results from Designs B and C. State which of the two prevails on your opinion and why.

The managers of three different supermarkets in the US desire to test the effectiveness of a new store design on sales. The manager of supermarket A decides to let store directors choose on their own whether they judge appropriate to implement the new design. The manager of supermarket B randomly chooses stores to assign the new design. The manager of supermarket C randomly draws stores in each US State separately.

(a) State whether each of the three experimental designs is observational or experimental, providing an explanation.

(b) Which experimental design is implemented in each of the three studies?

(c) Which kind of bias will arise from design A? Why?

(d) Compare the quality of statistical results from Designs B and C. State which of the two prevails on your opinion and why.

Explain the impact on US export and import if the US dollar has depreciated in comparison with other currencies. For example, the exchange rate for the Canadian dollar was 1.36 per U.S dollar in 2003. Now in 2020, it is 1.31 Canadian dollars per U.S.dollar under this case the dollar has suffered a slight depreciation. Also, when the dollar has depreciated in the case of the Chinese Yuan from 8.27 in 2003 to 6.69 yuans in 2020 per U.S dollar. Also, when there is not either appreciation or depreciation from 2003 to 2020 which is the case of Saudi Arabia currency its exchange rate remains the same 3.75 Riyals per dollar since 2003. Then explain the impact of U.S. exports and imports under these scenarios.

Grades on a standardized test are known to have a mean of 500 for students in the US. The test is administered to 600 randomly selected students in Florida. In this subsample, the mean is 508, and the standard deviation is 75

i. Construct a 95% confidence interval for the average test score for students in Florida.

ii. Is there statistically significant evidence that students in Florida perform differently from other students in the US?

iii. Another 500 students are selected at random from Florida. They are given a 3 hour preparation course before the test is administered. Their average test score is 514, with a standard deviation of 15. Construct a 95% confidence interval. Is there statistically significant evidence that the preparation course helped? What conditions must be met in order for the results to have a causal interpretation?

please use own words don't plagiarise,

1. Provide a high-level overview of the US health care system. Discuss how your personal worldview may influence your perspective on the healthcare system in relation to cost, quality, and access.( Explain in details and with references to support)

2. Discuss the commonalities and differences between individual and population health. Provide an example of each, along with a time when a provider would be concerned about both concurrently..( Explain in details and with references to support)

3. The Pareto efficiency is a simple idea, but it is difficult to achieve. Why is this? Provide an example. ( Explain in details and with references to support)

4. Describe perfect competition as it relates to health care economics. What are the key characteristics? Does perfect competition provide an advantage or disadvantage to the consumer? To the health care provider/organization? Provide an example of perfect competition within health care.( Explain in details and with references to support)

please use APA 6 references to cite them

for all the questions.... thank you

I JUST NEED THE ANSWER, THX.

Three different companies each purchased trucks on January 1, 2018, for $80,000. Each truck was expected to last four years or 250,000 miles. Salvage value was estimated to be $4,000. All three trucks were driven 78,000 miles in 2018, 55,000 miles in 2019, 50,000 miles in 2020, and 70,000 miles in 2021. Each of the three companies earned $69,000 of cash revenue during each of the four years. Company A uses straight-line depreciation, company B uses double-declining-balance depreciation, and company C uses units-of-production depreciation.
Answer each of the following questions. Ignore the effects of income taxes.

a-1. Calculate the net income for 2018? (Round "Per Unit Cost" to 3 decimal places.)

a-2. Which company will report the highest amount of net income for 2018?

b-1. Calculate the net income for 2021? (Round "Per Unit Cost" to 3 decimal places.)

b-2. Which company will report the lowest amount of net income for 2021?

c-1. Calculate the book value on the December 31, 2020, balance sheet? (Round "Per Unit Cost" to 3 decimal places.)

c-2. Which company will report the highest book value on the December 31, 2020, balance sheet?

d-1. Calculate the retained earnings on the December 31, 2021, balance sheet?

d-2. Which company will report the highest amount of retained earnings on the December 31, 2021, balance sheet?

E.Which company will report the lowest amount of cash flow from operating activities on the 2020 statement of cash flows?