Questions
27. A single multiple-choice question has 5 choices, only one of which is correct. A student...

27. A single multiple-choice question has 5 choices, only one of which is correct. A student taking this test knows the answer with probability 0.8. If the student does not know the answer, he or she guesses randomly.
a) Find the probability that the student knew the answer, given that the question was answered correctly.
b) To pass the test a student must answer at least eight questions correctly from ten, what is the probability that the student will pass the test?

In: Statistics and Probability

1. A physician wishes to administer 1,700,000 units of penicillin G potassium every 4 hours. If...

1. A physician wishes to administer 1,700,000 units of penicillin G potassium every 4 hours. If 1 unit of penicillin G potassium (C16H17KN2O4S: m.w. 372) equals 0.8 mcg, how many milliequivalents of K+ will the patient receive in a 24-hour period?

2. How many millimoles of calcium gluconate (Ca(C6H11O7)2: m.w. 430) are represented in 10 mL of a 20% w/v calcium gluconate solution?

In: Chemistry

During a recessionary gap, is the goal to increase or decrease the equilibrium       GDP?  Will the change...

  1. During a recessionary gap, is the goal to increase or decrease the equilibrium

      GDP?  Will the change in spending be greater than, less than or equal to the

      change in the equilibrium GDP?

  1. In a given economy, with an equilibrium GDP of $750,000 both governmen

    purchases and taxes increase by $50,000.  Solve for the new equilibrium GDP that

    will result from these two changes.

  1. In a given economy with an MPC of 0.8, the equilibrium GDP equals $600,000.  

      If M increases by $20000, solve for the new equilibrium GDP that will result.

In: Economics

1) If the boys and girls have the same probabilities of being born. What is the...

1) If the boys and girls have the same probabilities of being born. What is the probability that a family of 5 children selected randomly has atleast one boy?

2) Of the pieces produced by a machine in particular, 0.8% are defective. If an aleatory sample of 8 pieces produced by this machine contains two or more defective pieces, the machine will be turned off to make reparations. Find the probability that the machine would turn off for reparations based on the sampling plan.

In: Statistics and Probability

Lee Company has the following information for the pay period of December 15–31: Gross payroll $15,189...

Lee Company has the following information for the pay period of December 15–31:

Gross payroll $15,189 Federal income tax withheld $2,227
Social security rate 6% Federal unemployment tax rate 0.8%
Medicare rate 1.5% State unemployment tax rate 5.4%

Assuming no employees are subject to ceilings for taxes on their earnings, Salaries Payable would be recorded for

a.$11,822.83

b.$10,881.11

c.$12,020.28

d.$15,189.00

In: Accounting

345 kV, 50 Hz, 3-phase transmission line is 100 km long. The resistance is 0.048 Ω/km...

345 kV, 50 Hz, 3-phase transmission line is 100 km long. The resistance is 0.048 Ω/km and the inductance is 1,24 mH/km. The shunt capacitance is 0.0174 μF/km. The receiving end load is 216 MW with 0.8 power factor lagging at 325 kV.

(a) Compute ABCD parameters using π equivalent circuit

(b) Sending end voltage VS,

(c) Sending end current IS,

(d) Efficiency

In: Electrical Engineering

A CI engine operating on the air standard diesel cycle has cylinder condtioons at the start...

A CI engine operating on the air standard diesel cycle has cylinder condtioons at the start of compression of 65 degrees C and 130 kPa. light diesel fuel is used at an equivalence ratio of 0.8 with a combustion efficiency of 0.98. compression ratio = 18 Calculate:

  1. temperature and pressure in each state of the cycle (0c)
  2. pressure at each state of the cycle (kpa)
  3. cutoff ratio
  4. indicated thermal efficiency (%)
  5. heat lost in exhaust (KJ/Kg)

In: Mechanical Engineering

A mutual fund manager expects his portfolio to earn a rate of return of 11 percent...

A mutual fund manager expects his portfolio to earn a rate of return of 11 percent this year. The beta of the portfolio is 0.8. If the market risk premium is 10 percent and the risk-free rate is 4 percent, is it a good idea to invest? How could you use a stock index fund (S&P 500 index) and risk-free fund (invested in T-bills) to create a portfolio with the same risk as the manager, but a higher return?

In: Finance

Stock A has an expected return of 12%, a standard deviation of 24% on its returns,...

Stock A has an expected return of 12%, a standard deviation of 24% on its returns, and a beta of 1.2. Stock B has an expected return of 15%, a standard deviation of 30% on its returns, and a beta of 1.5. The correlation between the two stocks is 0.8. If we invested $30,000 in Stock A and $20,000 in Stock B, what is the beta of our portfolio?

Select one:

a. 1.03

b. 1.25

c. 1.32

d. 1.40

e. 1.56

In: Finance

The following data are available relating to the performance of Rock Fund and the Market portfolio:...

The following data are available relating to the performance of Rock Fund and the Market portfolio:

Rock Fund

Market Portfolio

Average Return

18%

14%

Standard deviations of returns

30%

22%

Beta

1.4

1.0

Residual Standard Deviation

4.0%

0.0%

The risk-free return during the sample period was 6%.

Calculate the M2 measure for the Rock Fund?

Select one:

a. 0.8%

b. 40%

c. 20%

d. 4%

e. 2.86%

In: Finance