The following are estimates for two stocks. Stock Expected Return Beta Firm-Specific Standard Deviation A 8 % 1.00 28 % B 16 1.60 40 The market index has a standard deviation of 25% and the risk-free rate is 9%.
a. What are the standard deviations of stocks A and B? (Do not round intermediate calculations. Round your answers to 2 decimal places.)
b. Suppose that we were to construct a portfolio with proportions:
Stock A 0.25 Stock B 0.50 T-bills 0.2
5 Compute the expected return, standard deviation, beta, and nonsystematic standard deviation of the portfolio. (Do not round intermediate calculations. Enter your answer for Beta as a number, not a percent. Round your answers to 2 decimal places.)
In: Accounting
In a simple random of 400 of Deadpool fights, Deadpool breaks the Fourth Wall in 223 of them.
Colossus claims that Deadpool breaks the Fourth Wall in half of
his fights. Do we have evidence that he's mistaken at each of the
following levels?
The associated p-value for this hypothesis test is ( )? (Answers to
four places after the decimal.)
(a) At the 20% level (Yes or No?)
(b)At the 13% level (Yes or No?)
(c)At the 10% level (Yes or No?)
(d)At the 7% level (Yes or No?)
(e)At the 5% level (Yes or No?)
(f)At the 3% level (Yes or No?)
(g)At the 2% level (Yes or No?)
(h)At the 1% level (Yes or No?)
(i) At the 0.2% level (Yes or No?)
(j) At the 0.1% level (Yes or No?)
Thank you very much! I will UPVOTE this answer!
In: Statistics and Probability
Ten randomly selected mental institutions were examined to determine the effects of three different antipsychotic drugs on patients with the same type of symptoms. Each institution used one and only one of the three drugs exclusively for one year period. The proportion of treated patients in each institution who were discharged after one year of treatment were given below
Drug1 0.1 0.12 0.08 0.14
Drug2 0.12 0.14 0.19
Drug3 0.2 0.25 0.15
a. Identify the outcome variable, factor, treatment, and experimental unit.
b.Write a linear statistical model for this study, and explain the model components.
c.What is general objective of one way ANOVA?Write the assumptions necessary for an analysis of variance of the data
In: Statistics and Probability
A box contains one yellow, two red, and three green balls. Two balls are randomly chosen without replacement. Define the following events, and use them to find the conditional probabilities below.
A:{A:{ One of the balls is yellow }}
B:{B:{ At least one ball is red }}
C:{C:{ Both balls are green }}
D:{D:{ Both balls are of the same color }}
a) P(B¯¯¯¯|A)=
b) P(B¯¯¯¯|D)=
c) P(C|D)=
Suppose that E and F are events in the sample space with
P(E∩F)=0.03, P(E|F)=0.1, and P(F|E)=0.2. Find the following
probabilities.
a) P(E)=
b) P(F)=
c) P(E∪F)=
In: Statistics and Probability
A 10 g marble slides to the left at a speed of 0.4 m/s along a frictionless surface. It has a head-on, elastic collision with a larger, 30 g marble sliding to the right at 0.2 m/s. Since the collision is head-on, all motion is along the x-axis.
a. Find the total kinetic energy AND the total momentum before the collision
b. The marbles bounce off each other elastically. Each marble has a different velocity after the collision. The lighter marble ends up with a velocity with a magnitude five times that of the heavier marble. Find the velocity of each marble after the collision.
c. Calculate the change in kinetic energy for each individual marble.
d. Calculate the change in momentum for each individual marble.
In: Physics
In the car there is a circular tray that can rotate in horizontal plane above the seat. Let the car start moving in straight direction with acceleration of 0.5 m/s^2 relative to the ground. The tray on the seat starts to rotate simultaneously with the angular velocity ω = 2πt. At this moment, a mass of m = 0.01 kg the spider starts moving in the radial direction outward from the center of the tray with V = 0.1 m / s (t=second, w=rad/sec.). The magnitude of the forces acting on the spider in the spider's reference system. Find the directions at t = 1.0 sec. and the direction of the total force and find the size. If the static friction coefficient between the spider and the tray is µ = 0.2, find the maximum distance it can travel without slipping.
In: Physics
A torsion test is performed on an aluminum probe, with the following results given in the following table:
| (degress(º)) | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 80 |
| T kgf.m | 0 | 5 | 11 | 14 | 14.5 | 14.7 | 16.3 | 16.4 | 16.5 | 16.6 | 16.7 | 16.4 | 16.5 | 16 |
The probe dimensions are as follows:
Length(L) |
Diameter(D) |
| 180 | 10 |
Through your graph of behavior of shear to torsion against angular deformation determine the following:
• Limit proportional to the cut
• Shear creep (0.2% deformation)
• Maximum resistance shear • rigidity modulus (G)
• Cut Resilience Module
Failure type (malleable, ductile, tenacious or brittle)
In: Mechanical Engineering
In: Accounting
In: Nursing
a) Explain the difference between systematic risk and unsystematic risk.
b) What are some examples of each?
c) Assume you are considering an investment in a new medical company that has developed a tiny robot that enters the body and (hopefully) destroys cancer tumors. If it works in clinical trials, the company will have cured cancer (and be very valuable); if it fails in clinical trials, the robot will be killing patients (and the company will be worthless). Under the CAPM approach, should this company have a high beta or a low beta, and explain why should that be the case?
d) If you wanted to use the company to diversify your existing holdings and reduce your risk, would you rather its correlation coefficient to the rest of your investments be -0.2 or 0.6? Explain.
In: Finance