1. Copy the files from Assignment 1 to Assignment 2. Relabel as necessary

2. Create 3 instances of the PetFoodCompany class - dogFoodMaker, catFoodMaker, fishFoodMaker.

3. Internally set the division name for each instance. (I.E. "Alpo" for dogFoorMaker, "Purina" for CatFoodMaker, "GloFish" for fishFoodMater)

4. Prompt me to enter the Company Name and Quarter only once.

5. For each of the above instances, prompt me for total sales and total expenses. A loop is not expected.

6. For each instance of the class, display the Company Name, Quarter. Division Name, Total Sales, Total Expenses and Net Income. The company name and quarter should be displayed for all instances.

5 Points Extra Credit: Create a method in the PetFoodCompany class that will do step 6 and call it from main() for the 3 instances.

Here is the code:

PetFoodComp.h:

class PetFoodCompany
{
public:
  
PetFoodCompany();

char getQuart();
char* getCompany();
char* getDivision();

void setQuart(char quart);
void setTotalSales(float totalSales1);
void setTotalExpences(float totalExpences1);
void setCompany(char name[]);
void setDivision(char name1[]);

float getTotalSales();
float getTotalExpences();

double netIncome();
  

private:
  
char company[40];
char division[40];

static char quart;
static double BonusRate;

float totalSales;
float totalExpences;
  
  
};

PetFood.cpp:

#include <iostream>
#include <cstring>
#include "PetFoodComp.h"

using namespace std;

double PetFoodCompany::BonusRate = 0.02;
char PetFoodCompany::quart = '1';

PetFoodCompany::PetFoodCompany()
{
   strcpy(company, "myCompanyName");
}

char PetFoodCompany::getQuart()
{
   return quart;
}

float PetFoodCompany::getTotalSales()
{
   return totalSales;
}

float PetFoodCompany::getTotalExpences()
{
   return totalExpences;
}

char* PetFoodCompany::getCompany()
{
   return company;
}

char* PetFoodCompany::getDivision()
{
   return division;
}

void PetFoodCompany::setQuart(char quart1)
{
   if (quart1 == '1' || quart1 == '2' || quart1 == '3' || quart1 == '4')
       quart = quart1;
}

void PetFoodCompany::setTotalSales(float totalSales1)
{
   totalSales = totalSales1;
}

void PetFoodCompany::setTotalExpences(float totalExpences1)
{
   totalExpences = totalExpences1;
}

void PetFoodCompany::setCompany(char name[])
{
   strcpy(company, name);
}

void PetFoodCompany::setDivision(char dname[])
{
   strcpy(division, dname);
}

double PetFoodCompany::netIncome()
{
   return (totalSales - totalExpences);
}

PetFoodMain.cpp:

#include <iostream>
#include <cstring>
#include "PetFoodComp.h"

using namespace std;

int main()
{
   double totalSales, totalExpences;
   PetFoodCompany pet;
   cout << "Company Name is " << pet.getCompany() << "\n";
   cout << "Current Quarter is " << pet.getQuart() << "\n";

   cout << "Enter Total Sales: ";
   cin >> totalSales;

   cout << "Enter Total Expences: ";
   cin >> totalExpences;

   pet.setTotalExpences(totalExpences);
   pet.setTotalSales(totalSales);

   cout << "Net Income: " << pet.netIncome() << "\n";

   return 0;
}

Let X₁ and X₂ be independent identically distributed random variables with pmf p(0) = 1/4, p(1) = 1/2, p(2) = 1/4

(a) What is the probability mass function (pmf) of X₁ + X₂?

(b) What is the probability mass function (pmf) of X₍₂₎ = max{X₁, X₂}?

(c) What is the MGF of X₁?

(d) What is the MGF of X₁ + X₂

For decades, researchers have studied the relationship between violent media and violent behavior, with some studies finding a relationship, and others not. The following are data from a small study of teenagers that investigates the relationship between playing violent video games and fighting at school.

Use the above data to construct a scatterplot. Additionally, interpret the scatterplot.

Suppose that someone claims that the average number of siblings per person is 2. Use our survey data to test this claim. Use the p-value method. Assume 0.05 for the level of significance. Construct an appropriate confidence interval to see if the two methods produce the same conclusion.

1) Write the claim mathematically and identify H0andHa

2) Determine whether the hypothesis test is a one-tailed or a two-tailed test and whether to use a z-test, a t-test or a chi-square test. Explain your reasoning.

3) Find the test statistic and the p-value

4) Decide whether to reject or fail to reject the null hypothesis.

5) Construct the appropriate confidence interval

6) Interpret the decision in the context of the original claim.

NEED ANSWER ASAP! THANK YOU

Use the provided excel format to formulate an answer

The Salem Board of Education wants to evaluate the efficiency of the town’s four elementary schools. The three outputs of the schools are

■   output 1 = average reading score
■   output 2 = average mathematics score

■   output 3 = average self-esteem score

The three inputs to the schools are

■   input 1 = average educational level of mothers
(defined by highest grade completed: 12 = high
school graduate; 16 = college graduate, and so on)

■   input 2 = number of parent visits to school (per child)

■   input 3 = teacher-to-student ratio

The relevant information for the four schools is given in the file P04_42.xlsx. Determine which (if any) schools are inefficient.

Use the provided excel format to explain answer

In testing a new drug, we obtained the following results:

Run the ANOVA and fill in the summary table with the results obtained:

(Report P-value & F-ratio accurate to 3 decimal places and all other values accurate to 2 decimal places.)

What conclusion can be drawn at the 0.01 significance level?

• ___The various drugs do not have results that are statistically different.
• ___The various drugs have results that are statistically different.

A network consists of the following list. Times are given in weeks.

a. Draw the network diagram.

b. Calculate the expected duration and variance of each activity.

c. Calculate the expected duration and variance of the critical path

d. Calculate the probability that the project will be completed in less than 42 weeks.

Use a Karnaugh map to find the minimum AND-OR expression for x(a, b, c) with don’t-care conditions:

(c) Σ(1, 3) + d(0, 2, 4, 6)

(e) Σ(1, 7) + d(2, 4)