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A manufacturer withdrew Drug V from the market after a study revealed that its use was associated with an increase in the risk of heart attack. The experiment was placebo-controlled, randomized, and double-blind. Out of 1261 people taking Drug V there were 38 heart attacks, and out of 1290 people taking the placebo there were 27 heart attacks. Perform a hypothesis test to test whether those who take Drug V have a greater rate of heart attack than those who take a placebo. Use a level of signifigance of 0.10. Can we conclude that Drug V causes an increased risk of heart attack?
a) Determine the hypothesis for this test?
b) Find the test statistic for this test.
z =
c) Find the p-value for this test.
p-value =
d) What is the conclusion
Reject H0 or Do Not reject H0
e) Can we conclude that Drug V causes an incresed risk of heart attack?
If the correlation coefficient between stock C and stock D is +1.0% and the standard deviation of return for stock C is 15% and that for stock D is 30%, calculate the covariance between stock C and stock D.
TJX, Inc., an apparel retailer, reported net income (amounts in thousands) of $609,699 for Year 4. Compute basic and diluted earnings per share for Year 4, showing supporting computations.
today march 5th 2014 that is the settlement date you bought ten newly issued 1 000 face value bonds with 2.25 annual
How much do you have to deposit today so that beginning eleven years from now you can withdraw $10,000 a year for five years (periods 11 to 15) plus an additional amount of $20,000 in that last year (period 15)? Assume an interest rate of 7% p.a.
"Contracting for a standby hot site is too cost-prohibitive except in the rarest of circumstances. Therefore, the vast majority of companies should think in terms of providing for a cold site at most." Do you agree? Why or why not?
Choose a product/service (e.g McDonald fastfood, HP computer...) and identify three external environment factors that might have the most important impact on the development of this product/service in three - five years. Explain your answer.
Using the tax rates for the year 2006, determine the amount of federal income tax that is due for a C corporation that has a taxable income of $356,000.
Acc 573- Evaluate the factors that an investor may consider when deciding whether or not to invest in a company with a policy of non-dividend payments.
What is the optimal solution (be specific, how much x1 how much x2 what is the value of the objective function)? If demand for regular increased by 10, what will happen to the optimal solution (Z) and the decision variables x1 and x2?
Bond J is a 4 percent coupon bond. Bond K is a 10 percent coupon bond. Both bonds have 12 years to maturity, make semiannual payments, and have a YTM of 7 percent.
Prepare a 1,400- to 2,100-word paper identifying both organizational and individual causes of resistance to change. Describe how Lewin's theory of change can be used to overcome resistance to change.
Decide how you'll organize the email and which of these reasons you will present to the employee. You don't need to include everything unless you believe it will explain your rationale and maintain the employee's goodwill.
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