QS 16-27B Direct: Computing cash from operations LO P5

  
Use the above balance sheet and income statement to prepare the operating activities section by direct method. Assume all the sales were made on credit basis. (Amounts to be deducted should be indicated with a minus sign.)
  

QS 12-14B Direct: Computing cash received from customers LO P5

1. How much cash is received from sales to customers for year 2017?
  

2. What is the net increase or decrease in cash for year 2017?
  

The Cambridge Study of delinquent development was undertaken in N. London to investigate the links between criminal behavior in young men and socioeconomic factors of the upbringing. A cohort of 395 boys was followed for about 20 years starting at the age of 8 or 9. All boys attended 6 schools located near the research office.

The table below provides the following summary statistics relating family income and convictions.

Income level

• Can we consider the cohort of these boys to be a random sample of a certain portion of the male youth of UK?
• What is the necessary assumption that needs to be made about the income group assignment of these boys for the duration of the study?
• Identify the random variables of the data set. What is the type of these variables?
• Construct the appropriate plot of these data.
• Do the two random variables seem to have an association? Which one can be used as explanatory?           

The Cambridge Study of delinquent development was undertaken in N. London to investigate the links between criminal behavior in young men and socioeconomic factors of the upbringing. A cohort of 395 boys was followed for about 20 years starting at the age of 8 or 9. All boys attended 6 schools located near the research office.

The table below provides the following summary statistics relating family income and convictions.

Income level

• Can we consider the cohort of these boys to be a random sample of a certain portion of the male youth of UK?
• What is the necessary assumption that needs to be made about the income group assignment of these boys for the duration of the study?
• Identify the random variables of the data set. What is the type of these variables?
• Construct the appropriate plot of these data.
• Do the two random variables seem to have an association? Which one can be used as explanatory?  

Describe why a coastal location, like Santa Monica or San Diego, has a more moderate climate throughout the year than an inland location like Little Rock, AR or Dallas, TX? Provide 4 main reasons.

1. Suppose a random sample of 500 adults from Santa Clara County answered this question: “in general, do you believe in ghosts?” 225 responded that they believe in ghosts. Test whether it is plausible that, if you could ask all adults in the Santa Clara County this question, less than half would say they believe in ghosts. Use the significance level of 0.01 for this test. Do not forget to follow those five steps.

2. Suppose you believe that your long-time supplier of face masks produced less than 2% defective face masks.

   1. a) What are your null and alternative hypotheses for this problem?

   2. b) How do we commit a Type I error for this case?

   3. c) How do we commit a Type II error for this situation?

Java queue linked list

/*
* Complete the enqueue(E val) method
* Complete the dequeue() method
* Complete the peek() method
* No other methods/variables should be added/modified
*/
public class A3Queue {
   /*
   * Grading:
   * Correctly adds an item to the queue - 1pt
   */
   public void enqueue(E val) {
       /*
       * Add a node to the list
       */
   }
   /*
   * Grading:
   * Correctly removes an item from the queue - 1pt
   * Handles special cases - 0.5pt
   */
   public E dequeue() {
       /*
       * Remove a node from the list and return it
       */
       return null;
   }
   /*
   * Grading:
   * Correctly shows an item from the queue - 1pt
   * Handles special cases - 0.5pt
   */
   public E peek() {
       /*
       * Show a node from the list
       */
       return null;
   }
  
   private Node front, end;
   private int length;
   public A3Queue() {
       front = end = null;
       length = 0;
   }
   private class Node {
       E value;
       Node next, prev;
       public Node(E v) {
           value = v;
           next = prev = null;
       }
   }
}

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

public class A3Driver {
  
   public static void main(String[] args) {
      
  
       A3Queue queue = new A3Queue<>();
       queue.enqueue(5);
       queue.enqueue(20);
       queue.enqueue(15);
       System.out.println(queue.peek()+":5");
       System.out.println(queue.dequeue()+":5");
       queue.enqueue(25);
       System.out.println(queue.dequeue()+":20");
       System.out.println(queue.dequeue()+":15");

   }
}

Which of the following scenarios contain nonbiased samples? Select all that apply. Select all that apply: To estimate the mean height of students at her school, Kelly collects data by selecting a random group of students within her classroom. Elizabeth wants to estimate the mean grade point average of students at her school. She collects data by recording the grade point average of every 25th student on the list of students after a randomly selected first student. Andrew wants to estimate the mean number of classes that students take at his university. He collects data from a randomly selected proportionate number of students from each grade level. To estimate the mean salary of professors at his university, Homer collects data by recording the salaries of all professors included in 12 randomly selected departments.

5.78

A selective college would like to have an entering class of 1000 students. Because not all studets who are offered admission accept, the college admits more than 1000. Past experience shows that about 83% of the students admitted will accept. The college decides to admit 1200 students.Assuming that students make their decisions independently, the number who accept his the B(1200, 0.83) distribution. If this number is less than 1000, the college will admit students from its waiting list.

a What are the mean and standard deviation of the number X of students who accept?

b. Use the Normal approximation to find the probability that at least 800 students accept.

c. The college does not want more than 1000 students. What is the probability that more than 1000 will accept?

d. If the college decides to decrease the number of admission offers to 1150, what is the probability that more than 1000 will accept?