Working with Files in C++.

Create the following  program called payroll.cpp.  Note that the file you read must be created before you run this program.  The output file will be created automatically by the program.  You can save the input file in the same directory as your payroll.cpp file by using Add New Item, Text File.  

// File:  Payroll.cpp

// Purpose:  Read data from a file and write out a payroll

// Programmer:  (your name and section)

#include <cstdlib> // for the definition of EXIT_FAILURE

#include <fstream> // required for external file streams

#include <iostream> // required for cin cout

using namespace std;

int main ()

{

ifstream ins; // associates ins as an input stream

 ofstream outs; // associates outs as an output stream

 int id; // id for employee

 double hours, rate; // hours and rate worked

 double pay; // pay calculated

 double total_pay; // grand total of pay

 // Open input and output file, exit on any error

 ins.open ("em_in.txt"); // ins connects to file "em_in.txt"

 if (ins.fail ())

 {

   cout << "*** ERROR: Cannot open input file. " << endl;

   getchar(); //  hold the screen

   return EXIT_FAILURE;

 } // end if

 outs.open ("em_out.txt"); // outs connects to file "em_out.txt"

 if (outs.fail ())

 {

   cout << "*** ERROR: Cannot open output file." << endl;

   getchar();

   return EXIT_FAILURE;

 } // end if

// Set total_pay to 0

total_pay = 0;

ins >> id; // get first id from file

// Do the payroll while the id number is not the sentinel value

while (id != 0)

 {

   ins >> hours >> rate;

   pay = hours * rate;

   total_pay += pay;

   outs << "For  employee " << id << endl;

   outs << "The pay is " << pay << " for " << hours

<< " hours worked at " << rate << " rate of pay" << endl << endl;

   ins >> id;

 } // end while

 // Display a message on the screen

   cout << "Employee processing finished" << endl;

   cout << "Grand total paid out is " << total_pay << endl;

   ins.close(); // close input file stream

   outs.close(); // close output file stream

   return 0;

 }

Create the input file:

Inside C++ go to  File Add New Item and then Text to create a text file.  

Type in the data below

In the same directory as your .cpp file for Payroll.cpp click Files and Save As em_in.txt

1234

35  10.5

3456

40 20.5

0

solution should show :

-the output file  

-the input file

-the screen output

-the source program

Walmart, America’s largest retailer had the market’s second largest debt issuance in the U.S. in 2019, selling $16 billion in 30 year bonds. The funds were to help finance the purchase of Flipkart, India’s largest online seller. Thanks to Walmart’s high credit rating, the bonds were classified by Moody’s (one of the top bond rating agencies) as Aa2, or very highly rated. The bond sale was managed by a syndicate of investment banks, including Barclays Plc, Citigroup Inc., JPMorgan Chase & Co., Bank of America Corp., HSBC Holdings Plc and Wells Fargo & Co.

Data for Walmart as of April 2019

Basic “starting point” data:

You are to calculate each of the following based on the data provided above.

Need help with the questions below based on the information above:

  5. What is the 3 year growth rate (2020-2023) of expected dividends?

6. What is the 4 year growth rate (2015-2019) of actual dividends?

7. DISCUSS: Do either of these values seem appropriate? If so, which one and why?

8. What are the difficulties in estimating the "constant" growth rate for Walmart using the firm's ROE and payout ratio? [g = ROE*(1-payout ratio]

9. Using the CAPM equation for the required cost of capital, r = rf + β(market risk premium), what is the required cost of equity (r_e)?

10. What is the adjusted pre-tax cost of debt (r_d)?

Use descriptive statistics to summarize each of the three variables for the 40 Gulf View condos. Describe the distribution of each variable. Repeat for the 18 No Gulf View Condos. (This includes the five-number summary, the mean, standard deviation, and a histogram of each variable). Gulf View condos are denoted by “1” in the Gulf View column, whereas No Gulf View condos are denoted by “0”. Prices are in thousands of dollars.

Create a box plot for each of the three variables, with Gulf View and No Gulf View condos represented by a separate box. Compare the distributions between the two groups along with the statistics in question (1). Discuss any specific statistical results that would help a real estate agent understand the condominium market. ( Gulf View condos are denoted by “1” in the Gulf View column, whereas No Gulf View condos are denoted by “0”. Prices are in thousands of dollars.)

1.

You would like to buy a house that costs$ 350 comma 000$350,000.You have$ 50 comma 000$50,000

in cash that you can put down on the​ house, but you need to borrow the rest of the purchase price. The bank is offering you a​ 30-year mortgage that requires annual payments and has an interest rate of

7 %7%

per year. You can afford to pay only

$ 23 comma 210$23,210

per year. The bank agrees to allow you to pay this amount each​ year, yet still borrow

$ 300 comma 000$300,000.

At the end of the mortgage​ (in 30​ years), you must make a balloon​ payment; that​ is, you must repay the remaining balance on the mortgage. How much will be this balloon​ payment?

​Hint: The balloon payment will be in addition to the 30th payment.

2.

You are thinking of building a new machine that will save you

$ 5 comma 000$5,000

in the first year. The machine will then begin to wear out so that the savings decline at a rate of

3 %3%

per year forever. What is the present value of the savings if the interest rate is

8 %8%

per​ year?

The present value of the savings is ​$nothing. ​(Round to the nearest​ dollar.)

25)Sosin Inc. manufactures hydrogen engines. Recently 350 new orders placed by customers requesting credit. The variable cost is $16,000 per unit, and the credit price is $18,400 each. Credit is extended for one period, and based on historical experience, payments for 15% of the orders are never collected. The required return is 3% per period. Suppose that customers who don’t default become repeat customers and they never default. Calculate the NPV?

Suppose we have 30-day follow-up data on 350 ischemic stroke patients and want to investigate whether the risk of recurrent stroke and/or death (RD) depends on the type of stroke. You classify patients according to initial stroke type-having a cerebral embolism (CE = 1) or not (CE = 0).

Analysis of Maximum Likelihood Estimates

                                                        Standard         Wald

Parameter             DF      Estimate      Error          Chi-Square      Pr>ChiSq

Intercept               1        -2.8034         0.5149          29.639          <0.0001

CE                          1        1.8651          0.6479          8.2874          0.0040

Odds Ratio Estimates

                    Point                      95% Wald

Effect           Estimate                Confidence Limits

CE                6.457                      1.814           22.986

a) What is the risk of RD for CE patients?

b) What is the risk of RD for non-CE patients?

c) Is the risk of RD the same for CE and non-CE patients? Estimate the relative risk of RD.

1. The equilibrium constant, K_c, for the following reaction is 9.52×10^-2at 350 K.

CH₄(g) + CCl₄(g) = 2 CH₂Cl₂(g)

Calculate the equilibrium concentrations of reactants and product when 0.300 moles of CH₄and 0.300 moles of CCl₄are introduced into a 1.00 L vessel at 350 K.

2. 2HI(g) =H₂(g) + I₂(g)

If 1.87 moles of HI, 0.335 moles of H₂, and 0.211 moles of I₂ are at equilibrium in a 15.6 L container at 748 K, the value of the equilibrium constant, K_p, is ?

3. The equilibrium constant, K_p, for the following reaction is 2.01 at 500 K:

PCl₃(g) + Cl₂(g) =PCl₅(g)

Calculate the equilibrium partial pressures of all species when PCl₃ and Cl₂, each at an intitial partial pressure of 0.829 atm, are introduced into an evacuated vessel at 500 K.

4. The equilibrium constant, K_p, for the following reaction is 1.80×10^-2 at 698 K:

2HI(g) = H₂(g) + I₂(g)

Calculate the equilibrium partial pressures of all species when HI(g) is introduced into an evacuated flask at a pressure of 1.29 atm at 698 K.

Target Costing

The president of Houston Electronics was pleased with the company’s newest product, the HE Versatile CVD. The product is portable and can be attached to a computer to play or record computer programs or sound, attached to an amplifier to play or record music, or attached to a television to play or record TV programs. It can even be attached to a camcorder to record videos directly on compact disks rather than on tape. It also can be used with a headset to play or record sound. The proud president announced that this unique and innovative product would be an important factor in reestablishing the North American consumer electronics industry.

Based on development costs and predictions of sales volume, manufacturing costs, and distribution costs, the cost-based price of the HE Versatile CVD was determined to be $425. Following a market-skimming strategy, management set the initial selling price at $525. The marketing plan was to reduce the selling price by $50 during each of the first two years of the product’s life to obtain the highest contribution possible from each market segment.

The initial sales of the HE Versatile CVD were strong, and Houston Electronics found itself

adding second and third production shifts. Although these shifts were expensive, at a selling price of $525, the product had ample contribution margin to remain highly profitable. The president was talking with the company’s major investors about the desirability of obtaining financing for a major plant expansion when the bad news arrived. A foreign company had announced that it would shortly introduce a similar product that would incorporate new design features and sell for only $350. The president was shocked. “Why,” she remarked, “it costs us $375 to put a complete unit in the hands of customers.”

Required

How could the foreign competitor profitably sell a similar product for less than the manufacturing costs to Houston Electronics? What advice do you have for the president concerning the HE Versatile CVD? What advice would you have to help the company avoid similar problems in the future?

An advertising company wants to know whether the size of an advertisement and the color of the advertisement make a difference in the response of magazine readers. A random sample of readers shown ads of 4 different colors and 3 different sizes. Assume that the ratings follow the normal distribution. The rating is shown in the following table:

a. Using the Excel spreadsheet, construct an ANOVA table.

b. Is there a difference in the effectiveness of an advertisement by color at α =.05? (in your answer, you need to indicate F-static and critical value of F)

c.  Is there a difference in the effectiveness of an advertisement by size at α =.05 ? (in your answer, you need to indicate F-static and critical value of F)