Program: File name: “ Salesperson.java ” //Define a class named Salesperson public class Salesperson { //Declare the private variables private int id; private double sales; /Define a method Salesperson that includes an integer ID number and a double annual sales amount/ Salesperson(int idNum, double amt) { //Assign the values id = idNum; sales = amt; } //Define a method to display the id public int getId() { //Return the value return id; } //Define a method to display the annual sales amount public double getSales() { //Return the value return sales; } //Define a method to set the id public void setId(int idNum) { //Assign the value id = idNum; } //Define a method to set the annual sales amount public void setSales(double amt) { //Assign the value sales = amt; } } File name: “ DemoSalesperson...

Question

(using R)The iris data set in R gives the measurements in centimeters of the variables sepal length and width andpetal length and width, respectively, for 50 flowers from each of 3 species of iris, setosa, versicolor, andvirginica. Use the iris data set and the t.test function, test if the mean of pepal length of iris flowers isgreater than the mean of sepal length.The iris data set in R gives the measurements in centimeters of the variables sepal length and width andpetal length and width, respectively, for 50 flowers from each of 3 species of iris, setosa, versicolor, andvirginica. Use the iris data set and the t.test function, test if the mean of pepal length of iris flowers isgreater than the mean of sepal length.

Answer 1

Expert Solution & Answer

Chapter 8, Problem 6PE

a.

Explanation of Solution

Program:

File name: “Salesperson.java”

//Define a class named Salesperson

public class Salesperson

{

    //Declare the private variables

    private int id;

    private double sales;

    /Define a method Salesperson that includes

    an integer ID number and a double annual sales amount/

    Salesperson(int idNum, double amt)

    {

        //Assign the values

        id = idNum;

        sales = amt;

    }

    //Define a method to display the id

    public int getId()

    {

        //Return the value

        return id;

    }

    //Define a method to display the annual sales amount

    public double getSales()

    {

        //Return the value

        return sales;

    }

    //Define a method to set the id

    public void setId(int idNum)

    {

        //Assign the value

        id = idNum;

    }

    //Define a method to set the annual sales amount

    public void setSales(double amt)

    {

        //Assign the value

        sales = amt;

    }

}

File name: “DemoSalesperson...

b.

Explanation of Solution

Program:

File name: “Salesperson.java”

//Define a class named Salesperson

public class Salesperson

{

    //Declare the private variables

    private int id;

    private double sales;

    /Define a method Salesperson that includes

    an integer ID number and a double annual sales amount/

    Salesperson(int idNum, double amt)

    {

        //Assign the values

        id = idNum;

        sales = amt;

    }

    //Define a method to display the id

    public int getId()

    {

        //Return the value

        return id;

    }

    //Define a method to display the annual sales amount

    public double getSales()

    {

        //Return the value

        return sales;

    }

    //Define a method to set the id

    public void setId(int idNum)

    {

        //Assign the value

        id = idNum;

    }

    //Define a method to set the annual sales amount

    public void setSales(double amt)

    {

        //Assign the value

        sales = amt;

    }

}

File name: “DemoSalesperson2...

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(using R)The iris data set in R gives the measurements in centimeters of the variables sepal length and width andpetal length and width, respectively, for 50 flowers from each of 3 species of iris, setosa, versicolor, andvirginica. Use the iris data set and the t.test function, test if the mean of pepal length of iris flowers isgreater than the mean of sepal length.The iris data set in R gives the measurements in centimeters of the variables sepal length and width andpetal length and width, respectively, for 50 flowers from each of 3 species of iris, setosa, versicolor, andvirginica. Use the iris data set and the t.test function, test if the mean of pepal length of iris flowers isgreater than the mean of sepal length.

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