if im given α = 0.0027 how do i find the value of zα
using a normal distribution table? this is related to upper and
lower bound control limits like in chapter 14 of Statistics for
Business (3rd Edition) .
Stocks A and B have the following returns:
Stock A
Stock B
1
0.11
0.06
2
0.06
0.04
3
0.15
0.04
4
0.03
0.01
5
0.07
-0.03
a. What are the expected returns of the two
stocks?
b. What are the standard deviations of the
returns of the two stocks?
c. If their correlation is 0.48, what is the
expected return and standard deviation of a portfolio of 56% stock
A and 44%...
Stocks A and B have the following? returns:
Stock
A Stock B
1 0.11
0.05
2
0.06
0.02
3
0.15 0.05
4
-0.04
0.02
5
0.08
-0.04
a. What are the expected returns of ?stock A and Stock B?
b. What are the standard deviations of the returns of stock A
and stock B?
c. If their correlation is 0.43?, what is the expected return
and standard deviation of a portfolio of 55?% stock A and 45?%
stock? B?
Stocks A and B have the following returns:
Stock A
Stock B
1
0.11
0.06
2
0.07
0.04
3
0.13
0.03
4
−0.01
0.02
5
0.08
−0.03
(Round to three decimal places.)
a. What are the expected returns of the two stocks?
b. What are the standard deviations of the returns of the two
stocks?
c. If their correlation is 0.45, what is the expected return
and standard deviation of a portfolio of 70%
stock A and 30% stock B?...
Determine an A-B-C classification for these items:
•
Which items are A, B, and C - explain how you derive the
answers?
Item Unit Cost Annual volume(000)
1 300 25
2 90 30
3 30 60
4 50 10
5 15 70
6 100 40
7 10 60
Hint:
Determine the Annual Dollar Value (Unit Cost * Annual Volume)
for
each item and the sum of the individual Annual Dollar
Values.
Arrange the items in descending order based on Annual...
In the following sentences determine the appropriate sampling A,
B, C or D
A --- RANDOM (SIMPLE RANDOM SAMPLING)
B --- SYSTEMATIC
C --- STRATIFIED
D --- Cumulative (CONGLOMERATES)
1- A company is divided by DIRECTIVES, EMPLOYEES, SECRETARIES
AND WORKERS. It is wanted to make a study to know the level of
satisfaction in relation to the benefits that the company has. The
head of human resources decides to take a random sample of each
category.
2- A university career...
Probability
Stock A
Stock B
Stock C
0.2
0.14
0.29
0.04
0.2
0.11
0.21
0.09
0.2
0.0525
0.25
0.14
0.4
-0.03
0.1
0.2
1) Find all Covariance between all possible point
2) Find all Correlation between all possible point
Portfolio
Stock A
Stock B
Stock C
1
40%
60%
2
60%
40%
3
35%
30%
35%
1) Calcuate Portfolio Variance
2) Calculate Expected Return for each portfolio
Linearize by hand y =
a(x1)b(x2)c and
determine the coefficients a, b and c, and the coefficient of
determination using the data below.
x1
x2
y
1
1
3.48
1
2
5.87
2
3
27.35
3
2
43.75
4
5
134.92
6
8
377.38
The value of zα/2 when determine the 96%
confidence interval for p.
The decision rule (aka, the rejection region) for testing the
following pair of hypotheses at the .05 level of significance when
the population standard deviation is unknown and a random sample of
size 28 is taken.
H0: µ = 18
Ha: µ < 18
The value of tα/2 when determine the 99%
confidence interval for µ when the sample standard deviation of the
population is unknown and a...