Questions
Let us continue with analyses of data from the study of M Daviglus et al (N...

Let us continue with analyses of data from the study of M Daviglus et al (N Engl J Med 1997) on the relationship of fish consumption with death from coronary heart disease (CHD) among 1,822 male employees of the Western Electric Company Hawthorne Works in Chicago who were followed for 30 years. we consider the 242 men who reported consumption of ≥ 35 g/day of fish at baseline. Among these 242 men, 46 died of CHD during follow-up.

a. Provide a point estimate and an appropriate 95% confidence interval for the 30- year risk (probability) of CHD death among employees who typically consume at least 35 g/day of fish. Additionally provide a brief interpretation of your confidence interval.

b. Perform a one-sample test to determine whether the 30-year risk (probability) of CHD death in those who consumed at least 35 g/day of fish is significantly different from 0.25. Make sure to specify your null and alternative hypotheses and give a brief conclusion.

In: Math

come up with the scenario where housing could give us a WTP to avoid pollution from...

come up with the scenario where housing could give us a WTP to avoid pollution from a nearby coal power plant and a scenario where we could undercover the necessary payment people would be willing to accept to tolerate the coal plant nearby.

In: Economics

Aferris wheel is 250 ft in diameter and us boarded from a platform 15 ft high....

Aferris wheel is 250 ft in diameter and us boarded from a platform 15 ft high. T=0 when the wheel is at uts maximum height. The wheel takes 5. mins to make 1 rotation.
1. graoh 1 period if the wheel
2. find a firmula for the height of the wheel as a function of time

In: Physics

Zane just graduated from college and us thrilled to explore his new life and all the...

Zane just graduated from college and us thrilled to explore his new life and all the excitement that comes with it. Just now, Zane received communication from a company to whom he owes $100,000 in student loans. The information in the communication states that Zane agreed on an annual interest rate of 7.99% that is compounded annually. Also, Zane is allowed to make one fixed payment at the end of each year for the next 10 years.

Zane is shocked by this information because it has been 4 years since he signed that agreement but he is not dishearted because he received another email from a company he interviewed with that he has been hired at an above average starting salary. Zane is a planner and he pulls up his old financial calculator to figure out how he is going to be debt free very soon.

Although the loan asks for payment at the end of each year, Zane believes that he should not wait all year long and instead should save every month. His expected salary after taxes is $5,000 per month. He has a savings account at a credit union that is expected to pay 3% interest on savings that is compounded monthly.

In order to save the annual payment, Zane has decided to deposit an equal amount of money from his paycheck to his savings account. What should be the monthly amount for Zane to have accumulated the annual payment? Show steps on how you got answer.

In: Finance

Eric received an email from Amazon Customer Service that said "Thank you for contacting us." But...

Eric received an email from Amazon Customer Service that said "Thank you for contacting us." But Eric did not contact them. Instead, an attacker had contacted them and pretended to be Eric. When Amazon Customer Service asked the attacker to identify himself all he had to do was give Eric’s name, email address, and mailing address—which the attacker got from Whois, which contains Eric’s registration information for his website. However, Eric knew to protect his actual mailing address so the registration information on Whois was actually a hotel close to Eric’s house. Because the information matched what was on file, Customer Service told the attacker the mailing address of Eric’s order, which was his real home address. Eric contacted Amazon, found out these details, and told them not to release any of his information to anyone who contacted Customer Service, to which Amazon agreed. Fast forward two months. Eric again received another "Thank you for contacting us" email. After contacting Amazon again, he found that this time the attacker had tried to get the last four digits of Eric’s credit card number on file through more social engineering tricks.

Fortunately, this time Amazon did not surrender that specific piece of information (although they had ignored his previous instruction not to give out any information). Had they provided the credit card number the attacker would have had enough information to pass the "I’m-the-real- Eric" test on almost any of Eric’s online accounts (using his name, email address, mailing address, and last four digits of his credit card) and trick their Customer Service into resetting Eric’s password. This would then allow the attacker to get into Eric’s online accounts and purchase a virtually unlimited number of items charged to Eric’s credit card. What went wrong? Should the first Amazon Customer Service representative have been reprimanded? What policies should Amazon have had in place to prevent this? What technologies should there be in place to prevent this? As a customer, what should you do to protect your online accounts?

Write a one-page paper on your analysis.

In: Operations Management

Data from the Framingham Study allow us to compare the distributions of initial serum cholesterol levels...

Data from the Framingham Study allow us to compare the distributions of initial serum cholesterol levels for two populations of males: those who go on to develop coronary heart disease and those who do not. The mean serum cholesterol level of the population of men who do not develop heart disease is µ = 206mg/10ml and the standard deviation is σ = 36mg/100ml. Suppose, however, that you do not know the true population mean; instead, you hypothesize that µ is equal to 230mg/100ml. This is the mean initial serum cholesterol level of men who eventually develop the disease. Since it is believed that the mean serum cholesterol level for the men who do not develop heart disease cannot be higher than the mean level for men who do, a one-sided test conducted at the α = 0.05 level of significance is appropriate.

a. How could you increase the power?

b. You wish to test the null hypothesis H0: µ ≥ 230mg/100ml against the alternative HA: µ < 230mg/100ml at the alpha = 0.05 level of significance. If the true population mean is as low as 206mg/100ml, you want to risk only a 5% chance of failing to reject H0. How large a sample would be required?

c. How would the sample size change if you were willing to risk a 10% chance of failing to reject a false null hypothesis?

In: Math

What does the Letter from a Birmingham Jail tell us about MLK and his view of...

What does the Letter from a Birmingham Jail tell us about MLK and his view of unjust laws? How do you fight against unjust laws, and who should be held responsible? Do you agree with King and his methods?

In: Psychology

Question One: The following data extracted from the trial balance of ABC Company on Dec 31st...

Question One:

The following data extracted from the trial balance of ABC Company on Dec 31st 2020:

Financial Statement item

Amount

Financial Statement Item

Amount

Buildings

1,200,000

Motor vehicles – Accumulated depreciations

180,000

Cash

320,000

Depreciation expenses

630,000

Sales revenues

16,000,000

Purchases returns and allowance

96,000

Sales commission

120,000

Interest expenses

1,150,000

Travel expense - sale

75,000

Gains on sale of lands

455,000

Equipment

840,000

Notes payable

2,890,000

Account payable

420,000

Equipment – accumulated depreciation

440,000

Goodwill

3,000,000

Impairment loss – equipment

260,000

Purchases

6,400,000

Accumulated unrealized gains of non-trading securities

265,000

Trading securities

1,460,000

Sales returns and allowance

215,000

Account receivables

810,000

Customs and taxes – purchases

1,045,000

License

475,000

Utilities expenses

167,500

Audit fees

90,000

Customer list

300,000

Freight –in

85,000

Loss due to an earthquake damage

618,000

Repair expenses

76,000

Interest revenues

148,000

Purchases discount

128,000

loss on operation of the disposed division

195,000

Beginning inventory

1,487,500

Legal and accounting expenses

47,000

Share capital – ordinary

4,250,000

Buildings – Accumulated depreciation

280,000

Advertising expenses

630,000

Unearned revenues

215,000

Supplies

112,000

Furniture and computers

350,000

Prepaid insurance

120,000

Leasing liabilities

3,400,000

Notes receivables

1,650,000

Share premium – preference

675,000

Bonds payables

5,000,000

Share premium – treasury

180,000

Wages payable

62,000

Retained earnings

??

Dividends revenues

243,000

Accumulated revaluation surplus

220,000

Sales discount

145,000

Non-trading securities

5,575,000

Trade payables

88,000

Gains on currency exchange

140,000

Lands

3,050,000

Legal reserve

312,500

Delivery expenses

313,000

Share premium – ordinary

2,000,000

Rent expenses

94,000

Patent

960,000

Insurance expense

40,000

Treasury shares (400,000 * 3)

1,200,000

Motor vehicles

1,550,000

Held to maturity investment

3,417,000

Revaluation surplus

150,000

Salaries and wages expenses

1,180,000

Share capital – preference

2,000,000

Investment in preference shares

2,100,000

Franchise

1,450,000

Allowance for doubtful accounts

60,000

Mortgage payable

900,000

Loss on disposal of Salmya Branch’ assets

324,000

Dividends declared

700,000

Loss on sales of trading securities

81,500

Land for speculations

650,000

Buildings to lease out

1,850,000

Additional Information that was not included in the trial balance:

  • The number of ordinary shares is 10,000,000 shares authorized, 4,250,000 issued and 3,850,000 outstanding.
  • There are 10 KD par, (10%), 200,000 authorized, issued and outstanding preference shares.
  • 10% of the account receivables will be collected in 2022.
  • The insurance policy was purchased on Jan 1st 2020 for 160,000 KD and covers 4 years. One fourth of the amount was expensed as insurance expense during 2020 and the rest 120,000 will be expensed over the coming three years.
  • 50,000 KD of the mortgage payable due during next year.
  • 200,000 KD of the dividends declared foe preference shares
  • 150,000 KD of the notes receivables due next year
  • Salaries and wages expenses are 60% sales and 40% offices
  • Depreciation expenses are 20% sales and 80% offices.
  • Ending inventories was evaluated at 1,225,000 KD on Dec 31st 2020
  • 400,000 KD of the leasing liabilities due next year.
  • Utilities expenses are 30% sales and 70% offices.
  • 490,000 KD of the notes payable due next year.
  • Fair value of trading securities on Dec 31st 2020 is 1,615,000 KD
  • Fair value of non-trading securities on Dec 31st 2020 is 6,450,000 KD
  • Goodwill was revalued during the period at 4,000,000 KD.
  • Patent was impaired by 260,000 but it has not been recognized.
  • The company is subject to 30% income tax on all items.

Required:

  1. Prepare trial balance for ABC Company on Dec 31st 2020 and calculate retained earnings beginning balance?
  2. Prepare statement of comprehensive income, retained earnings statement and statement of financial position for ABC Company in good format and according to the requirements of IAS 1?

In: Accounting

Periodic System— Using Knowledge of Financial Statement Relations to Compute Missing Accounts The following information relates...

Periodic System— Using Knowledge of Financial Statement Relations to Compute Missing Accounts

The following information relates to Payleast Shoes Company. Assuming the company uses the periodic inventory system, solve for the missing amounts a through m for years 2020 through 2022.

  • Do not use negative signs in your answers.
  • Round gross profit percentage to the nearest whole percentage point.
2020 2021 2022
Net sales $90,000 $110,000 $130,000
Beginning inventory 12,000 e. j.
Purchases (gross) 70,000 82,500 99,000
Purchase returns and allowances 6,000 5,000 8,800
Purchase discounts 4,000 2,500 1,900
Freight-in 3,000 f. 10,000
Cost of goods available for sale a. 93,500 k.
Ending inventory 15,000 g. 26,000
Cost of sales b. 75,500 l.
Gross profit c. h. 39,700
Gross profit percentage d. i. m.

In: Accounting

Assume that Sample Company purchased factory equipment on January 1, 2017, for $90,000. The equipment has...

Assume that Sample Company purchased factory equipment on January 1, 2017, for $90,000. The equipment has an estimated life of five years and an estimated residual value of $9,000. Sample's accountant is considering whether to use the straight-line or the units-of-production method to depreciate the asset. Because the company is beginning a new production process, the equipment will be used to produce 10,000 units in 2017, but production subsequent to 2017 will increase by 10,000 units each year. Required: 1. Calculate the depreciation expense, accumulated depreciation, and book value of the equipment under both methods for each of the five years of its life. Enter all amounts as positive values.

Straight-line method:

Annual Accumulated Book
Year Depreciation Depreciation Value
2017
2018
2019
2020
2021

Units-of-production method:

Annual Accumulated Book
Year Depreciation Depreciation Value
2017   
2018   
2019
2020
2021

In: Accounting