Suppose the incidence rate of myocardial infarction (MI)
was 5 per 1000 among 45- to 54-year-old men in 2000.
To look at changes in incidence over time, 5000 men in this
age group were followed for 1 year starting in 2010. Fifteen
new cases of MI were found

7.12 Using the critical-value method with α = .05, test the
hypothesis that incidence rates of MI changed from 2000
to 2010.
7.13 Report a p-value to correspond to your answer to
Problem 7.12.
Suppose that 25% of patients with MI in 2000 died within
24 hours. This proportion is called the 24-hour case-fatality
rate.
7.14 Of the 15 new MI cases in the preceding study,
5 died within 24 hours. Test whether the 24-hour casefatality
rate changed from 2000 to 2010.
7.15 Suppose we eventually plan to accumulate 50 MI
cases during the period 2010–2015. Assume that the
24-hour case-fatality rate is truly 20% during this period.
How much power would such a study have in distinguishing
between case-fatality rates in 2000 and 2010–2015 if a
two-sided test with significance level .05 is planned?
7.16 How large a sample is needed in Problem 7.15 to
achieve 90% power?

1. Use the following information to create a pro forma balance sheet for General Talc Mines as of December 31, 2010.

A financial manager at General Talc Mines has gathered the financial data essential to prepare a pro forma balance sheet for cash and profit planning purposes for the coming year ended December 31, 2010. Using the percent-of-sales method and the following financial data, prepare the pro forma balance sheet.

1. The firm estimates sales of $1,000,000
2. The firm maintains a cash balance of $25,000
3. Accounts receivable represents 15% of sales
4. Inventory represents 35% of sales
5. A new piece of mining equipment costing $150,000 will be purchased in 2010

Total depreciation for 2010 will be $75,000

6. Accounts payable represents 10% of sales
7. There will be no change in notes payable, accruals, and common stock
8. The firm plans to retire a long term note (debt) of $100,000
1. Dividends of $45,000 will be paid in 2010
10. The firm predicts a 4% net profit margin

In order to prepare the statement of cash flows for Rag Dolls Corporation for 2010, the accountant has compiled the following data regarding cash flows:

                  Cash paid to acquire marketable securities.......................................... $  370,000

                  Proceeds from sale of marketable securities............................................. 17,500

                  Proceeds from issuance of capital stock................................................... 280,000

                  Proceeds from issuance of bonds payable.................................................. 55,000

                  Payments to settle short-term debt............................................................ 32,500

                  Interest and dividends received................................................................... 10,000

                  Cash received from customers.............................................................................. ?     

                  Dividends paid............................................................................................ 130,000

                  Cash paid to suppliers and employees.................................................... 1,030,000

                  Interest paid................................................................................................. 25,000

                  Income taxes paid........................................................................................ 70,000

                  Cash and cash equivalents, January 1, 2010................................................ 43,000

                  Cash and cash equivalents, December 31, 2010.......................................... 58,000

                  Using the above information, indicate the best answer for each question in the space provided.

                 3       Rag Dolls’ cash flow from operating activitiesduring 2010 is:

                          a       $45,000 net cash provided by operating activities.

                          b       $1,155,000 net cash used by operating activities.

                          c       $240,000 net cash provided by operating activities.

                          d       $195,000 net cash provided by operating activities.

                 4       In the 2010 statement of cash flows for Rag Dolls Corporation, the amount of cashreceived from customersis:

                          a       $1,310,000.

                          b       $1,103,000.

                          c       $1,233,000.

                          d       $1,293,000.

I need step by step solution to these two questions.

144) Calculate the cash proceeds from the following issuances of bonds. All situations are independent of each other and all the bond issuances pay interest annually.

Note: present value tables required.

a) $100,000, five-year, 10% bonds issued when the market rate is 8% b)$50,000, 10-year, 8% bonds issued when the market rate is 12% c) $200,000, 10-year, 9% bonds issued when the market rate is $12% d) $100,000, five-year, 12% bonds issued when the market rate is 8%

145) Warren Corporation signs an agreement on January 2, 2010, to lease delivery equipment for a five-year period. The current market value of the delivery equipment on January 2, 2010, is $225,000. The lease agreement calls for annual payments of $50,040. The first payment is made on January 2, 2010, all other payments are made on December 31 of each year. The lease agreement calls for an 8% interest rate. The estimated remaining life of the delivery equipment is six years. Ownership of the delivery equipment will transfer to Warren Corporation at the end of the lease term.

Note: present value tables required.

a) Prepare the journal entry on January 2, 2010, to record the lease agreement and make the first lease payment. b) Prepare the entry on December 31, 2010, to record the second lease payment and the accrual of interest.

Please show all work/provide explanations as appropriate, including clearly defining any variables that you use in the applied problems.

1) According to United Nations estimates ( http://www.worldometers.info/world-population/ ) , the population of the world at the start of 2020 was about 7.795 billion, and it is growing at about 1.05% per year.

a. Find an exponential growth model (i.e. write down an exponential function) that gives the earth’s population in billions as a function of time as measured by number of years after 2020. Be sure to clearly and carefully define your variables.

b. According to the model, what will the world population be in 2030? Solve algebraically as opposed to using a table of values or a graph.

c. Again, according to the model, how long will it take the population to double? Solve this algebraically; that is, do not simply use a table or graph.

d. In what year will the population reach 20 billion? Again, solve without resorting to a table of values or a graph.

2) Refer to the population model you found in problem 1. a. Sketch a graph of your model, displaying at least the next 200 years. You may carefully sketch the graph by hand on graph paper,

b. What is the average rate of change of the world population as described by your model over the next 100 years? (so, from 2020 to 2120, or t = 0 to t = 100)

c. What is the average rate of change from 2020 to 2050?

d. Describe how you could estimate the rate of change of the world population in 2030, and then carry out and show the steps you describe to give an estimate.

Even though both mammals, squid, and earthworms have closed circulatory systems, the systems themselves are quite different; this supports the concept of UNITY and DIVERSITY. Describe the unity and diversity across these three types of closed circulatory systems.

1. Short description of your assigned challenge
2. Describe the innovation you researched to address the challenge
3. The result (what did it prove?)
4. How/Why it impacts or supports the challenge

the challenge is "make Solar energy economical"

26. What is the “division of labor” and what example does Smith use to illustrate this idea? What limits the division of labor? Can you describe the process of technological innovation and its social consequences according to Marx?

1. a.How do you perceive the practice of corporate entrepreneurship in SAMHOUD company above ? Please explain in detail

b. How does this company encourage innovation among the employees?Please explain in detail