The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed, with mean of 3.2 pounds and standard deviation of 0.8 pound. If a sample of 4 fish is taken. What is the probability that the sample means will be between 3.1 and 4.0 pounds?

o close an inflationary expenditure gap of $20 billion in an economy with a marginal propensity to consume of 0.8, it would be necessary to

• decrease the aggregate expenditures schedule by $20 billion.

• decrease the aggregate expenditures schedule by $4 billion.

• increase the aggregate expenditures schedule by $4 billion.

• increase the aggregate expenditures schedule by $20 billion.

EXPECTED AND REQUIRED RATES OF RETURN

Assume that the risk-free rate is 6% and the market risk premium is 3%.

What is the required return for the overall stock market? Round your answer to two decimal places. %

What is the required rate of return on a stock with a beta of 0.8? Round your answer to two decimal places.

A blood test indicates the presence of a particular disease 96​% of the time when the disease is actually present. The same test indicates the presence of the disease 0.8​% of the time when the disease is not present. Two percent of the population actually has the disease. Calculate the probability that a person has the​ disease, given that the test indicates the presence of the disease.

5. You are using regression analysis to estimate the equity beta for an electric utility. Suppose the risk-free rate of return is zero, and you run the CAPM regression, obtaining a constant term equal to 0.5 and a slope parameter equal to 0.8. Have you implemented the CAPM regression correctly? Explain why or why not.

A plant that operates with Rankine cycle, has the following conditions: P1 = P2 = 10,000 kPa, T2 = 600 ° C, P3 = P4 = 10 kPa, η turbine = 0.8 and η pump = 0.75, power produced in the turbine = 80,000 kW. Calculate: inlet heat, outlet heat, steam flow, and thermal efficiency.

Economic Forecasting. Assume you are a cartoon artist at a local theme park. At your current price, $8.50, you sell 500 sketches a month. As a result of a $1.00 price increase sales reduced by 100 sketches.

1. What is the demand elasticity of your sketches? Interpret your results.
2. Assume your marginal cost is $4. What is your desired margin and your current margin? Interpret these numbers.
3. Was your price strategy profitable? Why or why not?

A survey asked 900 adult Americans how much it would bother them to stay in a room on the 13^th floor of a hotel. Interestingly, 15% said yes. Explain the meaning of the result!

a. What is the Standard Error of the estimate of the population proportion?

b. What is the Margin of Error at a C.L. of 95%?

c. What is the Margin of Error at a C.L. of 92%?

d. At a 98% C.L., if the researcher wants to limit the error within one percent range, what size of the sample is needed?

Which of the following statements indicates a possible fraud? I. Fill out this e-mail survey to receive a free gift. II. Be one of the first 30 callers to receive three days and two nights at a famous Las Vegas hotel. III. Your wealthy uncle recently died; send $250 to obtain details about your inheritance. Group of answer choices

III only.

I, II, and III.

II only.

II and III only.

Heating degree-day (HDD) and cooling degree-day (CDD) futures contracts make payments based on whether the temperature is abnormally hot or cold

. Required: a) Illustrate how these types of contracts are traded on the Chicago Mercantile Exchange (CME) using example(s)

. b) Evaluate why the following business might be interested in such a contract

:i) Soft drink manufacturers;

ii) Ski resort operators;

iii)Electric utilities;

iv)Amusement park operators.