Professor Fair believes that extra time does not improve grades on exams. He randomly divided a group of 300 students into two groups and gave them all the same test. One group had exactly 1 hour in which to finish the test, and the other group could stay as long as desired. The results are shown in the following table. Test at the 0.01 level of significance that time to complete a test and test results are independent.
| Time | A | B | C | F | Row Total |
| 1 h | 22 | 43 | 61 | 13 | 139 |
| Unlimited | 18 | 47 | 80 | 16 | 161 |
| Column Total | 40 | 90 | 141 | 29 | 300 |
(ii) Find the sample test statistic. (Round your answer to two decimal places.)
(iii) 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
.005 < P-value < 0.010
P-value < 0.005
In: Math
What are the main benefits to shippers of RFID based systems, which incorporate e-seals on containers?
In: Operations Management
JAVA - PLEASE COMMENT CODE - THANK YOU:
Implement a program that can input an expression in postfix notation and output its value.
In: Computer Science
Bill’s demand for hamburgers (a private good) is Q = 20 – 2P and Ted’s demand is Q =10 – P.a. Write down an equation for the social marginal benefit of the consumption of hamburgers. b. Now suppose that hamburgers are a public good. Write down an equation for thesocial marginal benefit of hamburger consumption.s
In: Economics
|
Sketch the block diagram of an IMC controller and describe its operation. |
In: Electrical Engineering
In what ways does your choice of a Target Market dictate (or imply) your choice of Value Proposition to focus on and who your Key Competitors will be?
In: Operations Management
Exercise 1:
You are required to re-write the following code to catch the exception that can occur.
import java.util.Scanner;
public class ExceptionDemo
{
public static void main(String[] args)
{
Scanner scanner = new Scanner(System.in);
System.out.print("Enter an integer: ");
int number = scanner.nextInt();
// Display the result
System.out.println( "The number entered is " + number);
}
}
In: Computer Science
Exercise 2:
Try-Catch Exercise
Write a Java code that does the following:
Create a class MyClass and create three methods myMethod1(), Method2() and Method3().
Invoke Method2() from Method1() and Method3() from Method2().
Write a code that can throw an exception inside myMethod3() and compile:
File file=new File("filename.txt");
Scanner sc=new Scanner(file);
You will get compilation errors now, as you are not handling a checked exception FileNotFoundException.
Declare throws over myMethod3() and myMethod2(). You will need to add throws FileNotFoundException on myMethod() as:
public void myMethod3() throws FileNotFoundException
{
File file=new File("filename.txt");
Scanner sc=new Scanner(file);
}
Handle the exception in myMethod1() by enclosing the code that can throw exception using a try-catch block:
public void myMethod1()
{
try{
myMethod2();
}
catch(FileNotFoundException e)
{
e.printStackTrace();
}
}
In: Computer Science
In: Operations Management
2. a) What is the shape of the aggregate supply (AS) curve if:
(i) Nominal wages and prices are flexible and
competitively determined?
(ii) Nominal wages are downwardly rigid?
b) What is the importance of the slope of the AS curve
from the standpoint of
stabilization
policy?
In: Economics
In: Operations Management
From early success reaped by Aurora and from the material presented, it would appear that management was effectively using its internal resources.
Identify the resources and explain in your own words, how the company was seemingly using them as growth drivers.
In: Operations Management
In: Computer Science
What is your understanding of the responsibilites of the social work profession, generally and specifically, the role and responsibilities that you wish to be able to assume as a professional social worker employed along the U.S. Mexico border?
In: Psychology
In: Mechanical Engineering