In order to calculate lean and fat mass, you must multiply the body fat percentage by which of the following?

 Height

 Age

 Activity level modifier

 Total body weight

A researcher wishes to estimate the percentage of adults who support abolishing the penny. What size sample should be obtained if he wishes the estimate to be within 5 percentage points with 95​% confidence if ​(a) he uses a previous estimate of 22​%? ​(b) he does not use any prior​ estimates? Round up the answer to the nearest integer

David has a savings account with a 7,000 balance today. The account earns an annual percentage rate of interest of 2.25%, compounded monthly. David plans to make no other deposits or withdrawals. How many years will it take David's account balance to double?

You deposit $175,000 in a savings account. The APR (Annual Percentage Rate) is 6%. Calculate the following: a. Assuming that the interest is compounded once a year, what is the amount accumulated after ten years? b. Assuming that the interest is compounded every month, what is the amount accumulated after ten years? c. Assuming that the interest is compounded every day, what is the amount accumulated after ten years? d. What is the observed effect of compounding at a higher frequency on the amount of money accumulated? Explain.

What is the percentage price change for a zero coupon bond if its YTM changes from 3.7% to 4.9%? The bond's face value is $1,000 and it matures in 7 years. Use the price determined from the first yield, 3.7%, as the base in the percentage calculation. Round to the nearest tenth of a percent. (e.g., 4.32% = 4.3). [Hint: If the price dropped, enter a negative number].

What is the duration of a 2 year zero-coupon bond that is yielding 11.5 percentage? use $1000 as the face value

A random sample of leading companies in South Korea gave the following percentage yields based on assets.

Use a calculator to verify that s² ≈ 2.034 for these South Korean companies.

Another random sample of leading companies in Sweden gave the following percentage yields based on assets.

Use a calculator to verify that s² ≈ 0.407 for these Swedish companies.

Test the claim that the population variance of percentage yields on assets for South Korean companies is higher than that for companies in Sweden. Use a 5% level of significance. How could your test conclusion relate to an economist's question regarding volatility of corporate productivity of large companies in South Korea compared with those in Sweden?

(a) What is the level of significance?

State the null and alternate hypotheses.

H_o: σ₁² = σ₂²; H₁: σ₁² > σ₂²H_o: σ₁² > σ₂²; H₁: σ₁² = σ₂²    H_o: σ₂² = σ₁²; H₁: σ₂² > σ₁²H_o: σ₁² = σ₂²; H₁: σ₁² ≠ σ₂²

(b) Find the value of the sample F statistic. (Use 2 decimal places.)


What are the degrees of freedom?

What assumptions are you making about the original distribution?

The populations follow dependent normal distributions. We have random samples from each population.The populations follow independent chi-square distributions. We have random samples from each population.    The populations follow independent normal distributions.The populations follow independent normal distributions. We have random samples from each population.

(c) Find or estimate the P-value of the sample test statistic.

p-value > 0.1000.050 < p-value < 0.100    0.025 < p-value < 0.0500.010 < p-value < 0.0250.001 < p-value < 0.010p-value < 0.001

(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis?

At the α = 0.05 level, we reject the null hypothesis and conclude the data are not statistically significant.At the α = 0.05 level, we reject the null hypothesis and conclude the data are statistically significant.    At the α = 0.05 level, we fail to reject the null hypothesis and conclude the data are not statistically significant.At the α = 0.05 level, we fail to reject the null hypothesis and conclude the data are statistically significant.

(e) Interpret your conclusion in the context of the application.

Fail to reject the null hypothesis, there is sufficient evidence that the variance in percentage yields on assets is greater in the South Korean companies.Reject the null hypothesis, there is insufficient evidence that the variance in percentage yields on assets is greater in the South Korean companies.    Reject the null hypothesis, there is sufficient evidence that the variance in percentage yields on assets is greater in the South Korean companies.Fail to reject the null hypothesis, there is insufficient evidence that the variance in percentage yields on assets is greater in the South Korean companies.

I want to calculate the max, min, mean, standard deviation and the percentage of data within one standard deviation from a file already existing in my directory using JAVA. As you can see it below, I have found max, min, mean and stand deviation. How can I get the percentages of data within one standard deviation in the following code?

import java.io.*;
import java.util.Scanner;

public class DataFile {

public static void main(String[] args) {
    // declare variables
    double number, maximum, minimum, sum, mean, standardDeviation;
    int count;

    Scanner file = null;

/* -------------------------------------------------------------------------- */
    try {
        file = new Scanner(new File("RawData.txt"));
    }

    catch(FileNotFoundException e) {
        System.out.print("Error; The program was terminated!");
        System.exit(1);
    }

/* -------------------------------------------------------------------------- */
    // initialize variables
    maximum = file.nextDouble();
    minimum = maximum;
    sum = 0;
    count = 1;

    while(file.hasNextDouble()) {
        number = file.nextDouble();

        if(number > maximum)
            maximum = number;

        else if(number < minimum)
            minimum = number;

        sum += number;
        count += 1;

    } // end while loop

    file.close();

/* -------------------------------------------------------------------------- */
    // mean calculation
    mean = sum / count;

    // standard deviation calculation
    

double stdDevSum = 0;
double stdDevMean = 0;
double stdDev = 0;

double sumOfSquares = squareSum - ((Math.pow(computationalSum, 2)/(count-1)));
double sSquared = sumOfSquares/(count-1);
double otherStdDev = Math.sqrt(sSquared);

// display statistics
System.out.println("Maximum ------------> " + maximum                   );
System.out.println("Minimum ------------> " + minimum                   );
System.out.println("Sum ----------------> " + sum                       );
System.out.println("Count --------------> " + count                     );
System.out.println("Mean ---------------> " + mean                      );
System.out.println("StdDev -------------> " + otherStdDev);

    

} // end method main

} // end class DataFile

Trend Analysis & Ratio Analysis

Ratio analysis uses percentage or decimal calculations of comparison to at least two different sets of financial data using two industries. Comparing how one relates (compares) to another. Be sure to provide website