A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back pain. Prior to testing the patch, each of n = 4 patients rates the current level of back pain on a scale from 1 to 8. After wearing the patch for 90 minutes, a second pain rating is recorded. The data are as follows.
Before After
__________________
G = 36 6 2
G2 = 784 6 2
ΣX2 = 192 4 4
8 4
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T = 24 T = 12
SS = 8 SS = 4
Perform an ANOVA and then analyze the data with a t-test. Use the .05 level of significance for both.
In: Math
Book Name: Principles of Managerial Finance - 180 Day Option,
14th Edition
Lawrence J. Gitman
P2–5 Interest versus dividend expense Michaels Corporation expects earnings before interest and taxes to be $50,000 for the current period. Assuming an ordinary tax rate of 35%, compute the firm’s earnings after taxes and earnings available for common stockholders (earnings after taxes and preferred stock dividends, if any) under the following conditions:
Please provide me with a detailed calculation for my study purpose thank you!
In: Finance
Problem 1) For each of the following sentences, indicate whether it is a language rule that is enforced by the Java compiler or a convention (that is, not enforced by the Java compiler but most programmers follow it). (a) Variable names must begin with a lower-case letter. (b) The name of a class must match the name of the file containing it. (c) All variables must be declared. (d) There must be a space before and after each operator. (e) All lines after a left curly brace must be indented. (f) Class names must begin with an upper-case letter. (g) Every program must begin with comments describing the author of the program and what the program does.
In: Computer Science
A hockey stick of mass ms and length L is at rest on the ice (which is assumed to be frictionless). A puck with mass mp hits the stick a distance D from the middle of the stick. Before the collision, the puck was moving with speed v0 in a direction perpendicular to the stick, as indicated in the figure. The collision is completely inelastic, and the puck remains attached to the stick after the collision.

Find the speed vf of the center of mass of the stick+puckcombination after the collision. Express vf in terms of the following quantities: v0, mp, ms, and L.vf =
After the collision, the stick and puck will rotate about their combined center of mass. How far is this center of mass from the point at which the puck struck? In the figure, this distance is (D-b) . (D-b) =
What is the angular momentum Lcm of the system before the collision, with respect to the center of mass of the final system? Express Lcm in terms of the given variables.Lcm =
What is the angular velocity w of the stick+puckcombinationafter the collision? Assume that the stick is uniform and has a moment of inertia i0 about its center. Your answer for w should not contain the variable b.
| w = |
Which of the following statements are TRUE?
1) Kinetic energy is conserved.
2) Linear momentum is conserved.
3) Angular momentum of the stick+puck is conserved about the center of mass of the combined system.
4) Angular momentum of the stick+puck is conserved about the(stationary) point where the collision occurs.
In: Physics
Linearly polarized light that is oriented along the x-axis and has intensity I0 is incident on a linear polarizer (LP1) with transmission axis oriented at an angle θ1=15° clockwise with respect to the x axis. The light then passes through a second linear polarizer (LP2) with transmission axis oriented at an angle θ2 = 45° counterclockwise relative to the x axis as shown before passing through a quarter wave plate. The fast axis of the quarter wave plate is aligned with the y-axis.
1)
What is the intensity of the light after the second linear polarizer (LP2) but before the quarter wave plate?
I 2 = 0.25 I0
I 2 = 0.467 I0
I 2 = 0.75 I0
I 2 = 0.233 I0
I 2 = 0.7 I0
2)
What is the polarization after the light passes through the quarter wave plate?
Linearly polarized along θ2
Left circularly polarized
Right circularly polarized
3)
Keeping the linear polarizers and quarter wave plate exactly the same, the incident light is now changed to be unpolarized as shown below. What is the intensity of light measured after the quarter wave plate(IQWPIQWP)?
IQWP=IQWP= 0.125 I0I0
IQWP=IQWP= 0.233 I0I0
IQWP=IQWP= 0.5 I0I0
IQWP=IQWP= 0.0583 I0I0
IQWP=IQWP= 0.467 I0
In: Physics
1- The indicator is the solution that is slowly added to the sample during a titration.
True
False
2-At the first equivalence point in this experiment the number of moles of HCl added to the sample and the number of moles of PO 43-originally in the sample are
|
Half |
||
|
Not equal |
||
|
0.1 molar |
||
|
Equal |
3-At the equivalence point Blank 1 PO 43- remains and there is Blank 2 H 3 O + leftover. The number of moles of H 3 O + added to the sample is Blank 3 to the number of moles of PO 43- with which you started.
4- After the first equivalence point, further addition of HCl will cause the reaction to form what ion?
|
H3PO4 |
||
|
H2PO4- |
||
|
HPO42- |
||
|
PO43- |
5-The titrant in this experiment, HCl, is a base.
True
False
6-
The sample in this experiment, phosphate, is an acid.
True
False
7-The titrant will be poured into which piece of equipment?
|
Dropper bottle |
||
|
Conical flask |
||
|
Pipette |
||
|
Buret 8- Before reaching the first endpoint, the color of the sample solution will be Blank 1 . At the first endpoint the color of the solution will be Blank 2 . 9-Before reaching the second endpoint (but after the first one), the color of the sample solution will be Blank 1 . At the second endpoint the color of the solution will be Blank2 10-After you reach the first endpoint, you must keep the sample solution so that you can also find the second endpoint. True False |
||
In: Chemistry
The owner of WebCity is trying to decide whether to remain a proprietorship or to incorporate. Suppose that the corporate tax rate on profits is
40 percent and the personal income tax rate is 50 percent. For simplicity, assume that all corporate profits (after corporate taxes are paid) are distributed as dividends in the year they are earned and that such dividends are subject to tax at the personal income tax rate.
If the owner of WebCity expects to earn $130,000 in before-tax profits this year, regardless of whether the firm is a proprietorship or a corporation, which method of organization should be chosen?
?
Proprietorship
Either one
Corporation
.
What is the dollar value of the after-tax advantage of this form of organization?
$.
Suppose that tax policy is changed to completely exempt from personal taxation the first
$28,000 per year in dividends (or profits), which method of organization should be chosen?
?
Either one
Corporation
Proprietorship
.
Suppose that the corporate form of organization has cost advantages that will raise before-tax profits by
$40,000.
Should the owner of WebCity incorporate?
?
No
Yes
.
By how much would after-tax profits change due to incorporation?
$ .
How can you explain the fact that even though corporate profits are subject to double taxation, most business in the United States is conducted by corporations rather than by proprietorships or partnerships?
A. A proprietorship structure provides limited liability for owners.
B. A corporate structure provides limited liability for owners.
C. A corporate structure guarantees higher profits.
D. None of the above.
In: Economics
Linearly polarized light that is oriented along the x-axis and has intensity I0 is incident on a linear polarizer (LP1) with transmission axis oriented at an angle θ1=15° clockwise with respect to the x axis. The light then passes through a second linear polarizer (LP2) with transmission axis oriented at an angle θ2 = 45° counterclockwise relative to the x axis as shown before passing through a quarter wave plate. The fast axis of the quarter wave plate is aligned with the y-axis.
1)
What is the intensity of the light after the second linear polarizer (LP2) but before the quarter wave plate?
I 2 = 0.25 I0
I 2 = 0.467 I0
I 2 = 0.75 I0
I 2 = 0.233 I0
I 2 = 0.7 I0
2)
What is the polarization after the light passes through the quarter wave plate?
Linearly polarized along θ2
Left circularly polarized
Right circularly polarized
3)
Keeping the linear polarizers and quarter wave plate exactly the same, the incident light is now changed to be unpolarized as shown below. What is the intensity of light measured after the quarter wave plate(IQWPIQWP)?
IQWP=IQWP= 0.125 I0I0
IQWP=IQWP= 0.233 I0I0
IQWP=IQWP= 0.5 I0I0
IQWP=IQWP= 0.0583 I0I0
IQWP=IQWP= 0.467 I0
In: Physics
a. The standard deviation of a sample of data was 14. Find the variance.
B. Given the sample data 5, 0, 7, 5, 9, and 6, find its range
C.
A new weight-loss program claims that participants will lose an average of more than 10 pounds after completing it. The data table shows the weights of five individuals before and after the program.
|
1 |
2 |
3 |
4 |
5 |
|
|
weight before |
264 |
220 |
285 |
264 |
195 |
|
weight after |
240 |
223 |
267 |
250 |
175 |
We need to test the hypothesis that the population mean of differences exceed 10. That is,
H0:
H1: .
Use 5% level of significance.
Find the test statistic.
(Provide two significant digits to the right of the decimal point)
C.
A person can take either of two routes to work, through Matteson or Richton Park. Both take on average 35 minutes, and travel times are Normally distributed. But are the variances of the travel times different? A random sample with n = 8 using the Matteson route, and another random sample with n = 6 using the Richton Park route, showed a variance of 45 (units: square minutes) and 30 respectively. To test whether the variances are different, the following test of hypothesis should be done:
H0:
H1:
What is the value of the test statistic?
In: Statistics and Probability
Vegas Products sells marked playing cards to blackjack dealers. It has not paid a dividend in many years but is currently contemplating some kind of dividend. The capital accounts for the firm are: Common stock (2,500,000 shares) $12,500,000 Retained earnings 22,500,000 Net worth $35,000,000 The company’s stock is selling for $20 per share, and it earned $5,000,000 during the year with 2,500,000 shares outstanding, indicating a P/E ratio of 10. a. Restate the capital accounts at year end after the 10% stock dividend. Common stock $ 13750000 13750000 Incorrect Retained earnings 17500000 17500000 Correct Net worth 31250000 31250000 Incorrect b. Restate the EPS and share price. (Assume the P/E ratio remains constant.) (Do not round intermediate calculations. Round the final answers to 2 decimal places.) EPS $ 1.82 1.82 Correct Share price $ 18.18 18.18 Correct c. How many shares would an investor end up with if he or she originally had 150 shares? Number of shares 165 165 Correct shares d. If an investor originally had 150 shares, what is the investor’s total investment worth before and after the stock dividend if the P/E ratio remains constant? (Do not round intermediate calculations.) Total investment Before stock dividend $ 3000 3000 Correct After stock dividend $ 3000 3000 Correct
In: Finance