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A professor's rule of thumb is that students should spend 2 hours studying for each 1 hour spent in class. Professor Bob teaches a class that meets 3 hours per week. He randomly selects 8 students and finds that they study the following amounts per week: 1, 2, 4, 4, 6, 6, 8 and 14. Assuming a normal distribution, can the professor conclude with 95% certainty that the students are studying as they should?
Is this test will be given to 600 randomly selected people, where each person has the illness, find the probability that there will be at least one false negative.
Starting salaries of economics majors have a mean of $47,000/year with a standard deviation of $8,000. What is the probability that a random sample of 100 majors will have an average salary of more than $50,000 year?
What is the probability that the annual return in a given year will exceed 15%? Suppose that the fund managers change the holdings of the fund such that the mean becomes 15% and the standard deviation becomes 5%. What are the new values for the pre..
a normal distribution has a mean of 500 a standard deviation of 50. A manager wants to simulate one value from this distribution, and has drawn the number 1.4 randomly. What is the simulated value?
An Introduction to Economics class with 188 students meets in this lecture hall. What is the probability that at least one right-handed student in this class is forced to use a seat designed for a left-hander?
the dunbar family consists of a mother, a father and some children. The average age of the members of the family is 20. The father is 48 and the average age of the mother and the children is 16. how many children do they have?
Then make a list of actions the Japanese government must accomplish to restore the economy and provide health and safety to the citizens. Keep in mind the limited resources available and priorities of each restorative action. What are the opportun..
What is the ant's linear velocity? Include appropriate units in your answer.
A new bone study is being planned that will measure the biomarker TRAP described in Exercise 6.17. Using the value of σ given there, 6.5 U/l, ?nd the sample size required to provide an estimate of the mean TRAP with a margin of error of 1.5 U/l fo..
housing prices have decreased, many homeowners have lost their homes because they are unable to pay the increasing mortgage costs of their variable rate home loans, more houses came on the market, fewer people could qualify for a home loan because..
Discussion Board also identify one decision that JTI managers must make in each of the six value chain functions for this product.
Assume a monopolist faces the market demand function P=a-bQ. Its marginal cost is given by MC = c+ eQ. Suppose that a > c and 2b + e > O.
At the management luncheon, two managers were overheard arguing about the following statement: "A manager should never hire another worker if the new person causes diminishing returns". Is this statement correct? If so, why? If not, explain why no..
In 2008-2009, the nation economy retrenched in the wake of a global financial crisis. Did the globalization of capital markets contribute to this crisis.
Suppose elasticity is -2,price is $10, and marginal cost is $8, should you raise or lower price?
Sun City, Arizona, a retirement community that features full service living arrangements, is planning two proposals to provide lawn care to elderly residents.
Suppose that initially G is $100 and equilibrium real GDP demanded is $1,000. If the multiplier is 4 & G increases to $200, real GDP demanded will increase
A potential entrepreneur is trying to make a decision whether to open a new spa. She presently makes $35,000 per year as an aerobics instructor
If the First Bank sells $10 million of its fixed rate assets and replaces them with ratesensitive assets, what is the income gap for the bank? What will happen to profits next year if interest rates fall by 3 percentage points?
Assume that some of these drugs are legalized so that anyone may sell and use them.
The Bureau of Labor Statistics reported that in January 2000 total labor force was 140,910,000 of a possible 208,782,000 working age adults.
Explain the impacts of an expansionary fiscal policy such as a tax cut on the levels GDP, Consumption, Investment, interest rate and unemployment and price.
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