Brokerage Satisfaction with Trade Price Satisfaction with Speed of Execution Overall Satisfaction with Electronic Trades

a. Develop an estimated regression equation using trade price and speed of execution to predict overall satisfaction with the broker. What is the coefficient of determination?

b. Develop an estimated regression equation using trade price and speed of execution to predict overall satisfaction with the broker. What is the SSR?

c. Develop an estimated regression equation using trade price and speed of execution to predict overall satisfaction with the broker. Can you conclude that there is a relationship between satisfaction with speed of execution and overall satisfaction with the electronic trade (can you reject the hypothesis that the parameter is = 0)? Group of answer choices

use Java

The two roots of a quadratic equation ax^2 + bx + c = 0 can be obtained using the following formula:

r1 = (-b + sqrt(b^2 - 4ac)) / (2a)
and
r2 = (-b - sqrt(b^2 - 4ac)) / (2a)

b^2 - 4ac is called the discriminant of the quadratic equation. If it is positive, the equation has two real roots. If it is zero, the equation has one root. If it is negative, the equation has no real roots.

Write a program that prompts the user to enter values for a, b, and c and displays the result based on the discriminant.
If the discriminant is positive, display two roots.
If the discriminant is 0, display one root.
Otherwise, display “The equation has no real roots”.

Note that you can use Math.pow(x, 0.5) to compute sqrt(x).

Sample Run 1

Enter a, b, c: 1.0 3 1
The equation has two roots -0.381966 and -2.61803

Sample Run 2

Enter a, b, c: 1 2.0 1
The equation has one root -1

Sample Run 3

Enter a, b, c: 1 2 3
The equation has no real roots

Class Name: Exercise03_01

If you get a logical or runtime error, please refer https://liveexample.pearsoncmg.com/faq.html.

#32

Is there a relation between police protection and fire protection? A random sample of large population areas gave the following information about the number of local police and the number of local fire-fighters (units in thousands). (Reference: Statistical Abstract of the United States.)

Use a 5% level of significance to test the claim that there is a monotone relationship (either way) between the ranks of number of police and number of firefighters.

(a) Rank-order police using 1 as the largest data value. Also rank-order firefighters using 1 as the largest data value. Then construct a table of ranks to be used for a Spearman rank correlation test.

(c) Compute the sample test statistic. (Use 3 decimal places.)

Part One: Write an interactive program to calculate the volume and surface area of a three-dimensional object. Use the following guidelines to write your program:

1. Create a word problem that involves calculating the volume and surface area of a three-dimensional object. Choose one of the following:
   • Cube: surface area 6 s2 , volume s3
   • Sphere: surface area 4πr2 , volume (4.0/3.0) π r3
   • Cylinder: surface area 2π r2 + 2 π r h, volume π r2 h
   • Cone: surface area πr(r+√(h2+r2) ), volume 1.0/3.0 π r2 h
2. Print the description of the word problem for the user to read.
3. Ask the user to enter the information necessary to perform the calculations.
4. Use 3.14 for the value of π as needed.
5. Print the results of each calculation.
6. Write the pseudocode for this program. Be sure to include the needed input, calculations, and output.

Part Two: Code the program. Use the following guidelines to code your program.

1. To code the program, use the Python IDLE.
2. Using comments, type a heading that includes your name, today’s date, and a short description of the program.
3. Follow the Python style conventions regarding indentation and the use of white space in your program.
4. Use meaningful names for all variables.

A bank teller can handle 40 customers an hour and customers arrive every six minutes. What is the average time a customer spends waiting in line?

a. 15 seconds b. 0.40 minutes c. 1.25 minutes d. 30 seconds

Customers arrive at a bakery at an average rate of 18 per hour on week day mornings. Each clerk can serve a customer in an average of three minutes. How long does each customer wait in the system?

a. 1 hour b. 0.33 hour c.0.45 hour d. 0.5 hour e. 1.5 hour

Students arrive at a class registration booth at the rate of 4 per hour. The administrators serve students in a first-come, first-serve priority with the average service time of 10 minutes. What is the mean number of students in the system?

a. 1.0 b. 1.33 c. 0.67 d. 2. 0 e. 15

Customers arrive at an ice cream store at the rate of 15 per hour. The owner attempts to serve in a first come, first-serve priority. The mean time to serve a customer is 3 minutes. Whatis the probability of walking into the store and not having to wait?

a. 75% b. 100% c. 133% d. 25% e. 50%

Solve using the same approach as the solution using Matlab for this differential equation
d^2y/dt^2 + 6dy/dt + 9y = cos(t)
has initial conditions y(0)=1 y'(0)=2, Find Y(s) and without finding y(t),
determine what function of time will appear in the solution

%}
clear, clc
syms Y s t real
rhs = laplace(cos(t),t,s)
eqn1 = s^2*Y - s*2 - 1 + 6*s*Y -1 + 9*Y ==rhs
myanss = solve(eqn1,Y)
mypart = partfrac(myanss,'FactorMode','real')
%{
 
mypart =
 
(0.08*s + 0.06)/(s^2 + 1.0) + 1.92/(s + 3.0) - 4.3/(s + 3.0)^2
first term yields
exp(-b*t)*cos(w*t)
2nd term yields exp(-3*t)
3rd term yields t*exp(-3*t)
check
%}
myanst = (ilaplace(mypart,s,t))
%{
 
myanst =
 
exp(-t*1.0i)*(0.04 + 0.03i) + exp(t*1.0i)*(0.04 - 0.03i) + 1.92*exp(-3.0*t) - 4.3*t*exp(-3.0*t)
%}


T = [0, 20]
fplot(myanst,T)

Drumpf suppy has the following accounts receivable aging schedule as at december 31,2015.

The balance in drumpf's allowance for doubtful accounts at the beginning of the year is $6,000(credit). During the year, accounts in the total amount of $4,500 were writeen off.

1.use formulas to calculate the allownace required for each line and the total allowance requied.

2.based on aging of receivables, the bad debit expense is___ (build the bad debt expense equation)

3. prepare the journal entry for bad debt expense

4.determine the bad debt expense using the percentafe of credit sales method at 1.5%. Credit sales for the year are $493,000. And prepare the journal entry for bad expense

5. Which method will result in the higher net income for the company?

Which method would a for-profit company probably prefer in these circumstance?

Please explain.

In an article in the Journal of Management, Joseph Martocchio studied and estimated the costs of employee absences. Assume an infinite population. The mean amount of paid time lost during a three-month period was 1.0 day per employee with a standard deviation of 1.4 days. The mean amount of unpaid time lost during a three month period was 1.2 days per employee with a standard deviation of 1.6 days. Suppose we randomly select a sample of 100 blue-collar workers.

1. What is the probability that the average amount of paid time lost during a three-month period for the 100 blue-collar workers will exceed 1.5 days?

2. What is the probability that the average amount of unpaid time lost during a three-month period for the 100 blue-collar workers will be between 1.4 and 1.5 days? Please give a precise explanation, as if you are telling someone who doesn’t know anything about statistics, for the reasoning behind your answer?

3. How large a random sample is needed to construct a 95 percent confidence interval for the mean for population paid time lost with a margin of error equal to 0.1? Please give a precise explanation, as if you are telling someone who doesn't know anything about statistics for the reasoning behind your answer.

Problem 1

A farm has been experimenting with a special diet for its horses. The feed components for the diet are

a standard feed product, a vitamin-enriched oat product, and a new vitamin and mineral feed additive

(detail below). The minimum daily diet requirements for each horse are 3 units of ingredient A, 6 units

of ingredient B, and 4 units of ingredient C. In addition, to control the weight of the horses, the total

daily feed for a horse should not exceed 6 pounds. The farm would like to determine the minimum-

cost mix that will satisfy the daily diet requirements.

Ingredients [in units] to Produce One Pound of Special Die

On a separate piece of paper, define the variables and formulate the mathematical model for this problem.

Enter the model into Excel's Solver and solve it. How many pounds of Standard product, Enriched Oat, and Additive should be used in the mix to generate the lowest possible total cost?

Please complete on excel using solver so I can see how to format and what cells to link

After a careful evaluation of investment alternatives and​ opportunities, Masters School Supplies has developed a​ CAPM-type relationship linking a risk index to the required return​ (RADR), as shown in the table

LOADING...

.

The firm is considering two mutually exclusive​ projects, A and B. Following are the data the firm has been able to gather about the projects.

All the​ firm's cash flows for each project have already been adjusted for taxes.

a. Evaluate the projects using ​risk-adjusted discount

rates.

b. Discuss your findings in part

​(a​),

and recommend the preferred project.

a. The net present value for project A is

​$______

  ​(Round to the nearest​ cent.)