Is there a difference between the means of occupancy rates in May and August? Answer your question by calculating an approximate and appropriate symmetric 95% confidence interval using a Z statistic. Explain your findings

Define three integer variables (number1, number2, and number3). We also define two other storage spaces for storing sum as well as averageValue. The storage space (sum) is used to store the sum of three integer numbers. The storage space (averageValue) is used to store the average of the three numbers.

***************************************************************************************/

#include <stdio.h> // standard input and output functions library

#include <stdlib.h> // include library to execute command (system ("pause"); )

/*
The purpose of this program is to calculate the average of three numbers
*/

int main ( void )
{ // Program start here
int number1, number2, number3, averageValue;
int sum ;

number1= 35; // assign value to number1
number2= 45; //assign value to the number2
number3 = 55; // assign value to the number3

sum = number1+ number2+ number3; // add all three numbers

averageValue = sum / 3 ;

fprintf(stdout, "\n\n\t\tValue of first number is:\t%d", number1);
// %d is format specifier to represent number1

fprintf(stdout, "\n\n\t\tValue of second number is:\t%d", number2);
// %d is format specifier to represent number2

fprintf(stdout, "\n\n\t\tValue of third number is:\t%d", number3);
// %d is format specifier to represent number3

/*
Print sum and average values of these numbers

   */

fprintf(stdout, "\n\n\t\tSum of three Numbers is:\t%d", sum);
// prints the sum of three numbers

fprintf (stdout, "\n\n\t\tAverage of three numbers is:\t%d", averageValue);
// prints the average of three numbers

fprintf(stdout,"\n\n"); // bring the cursor on the new line

system("pause"); // this statement holds the display until any key is pressed

} // end of program

Type the source code given above. The output of the application is given below:
(Change the background of the display to white – this saves black   ink for printing)

The output of your program must look as shown above.
Calculate sum and average manually (calculator) for these three numbers (26, 35 and 45);

Sum : ________________
Average : ________________

What is the difference in actual value as well as the value calculated by C application?

If the two values are different, why are they different?

Make the relevant changes in the program so that the values displayed are correct.
Show what changes are made in the program.

Exercise: 2:
Objective:
Purpose of this assignment is to learn use of reading and writing data into specific format.
Use of fprintf or printf statements
a. Use of escape sequence in C Programming
b. Use of different variables
c. Use of format specifier

/****************************************************************************************
Name : Enter your Name here and Student # : Student number
Date:

*****************************************************************************************/

#include <stdio.h> // Directive to include the standard input/output library

int main (void)
{ // Program begins here

//Define data type variable here

int books_quantity;
float book_price;
float total_amount;
char name_initial;

// Print my name and student number

fprintf(stdout, "\n\t\t\t\tName:\t\t\\tYour Name\n\t\t\t\tStudent Number:\t\\tYour student Number");

// Now print message to enter quantity of books

printf ("\n Enter the quantity of books:\t\t");

// read the quantity of books

scanf("%d", &books_quantity);

// print the message to enter price of each book

fprintf(stdout, "\n\n Enter the price per book:\t\t$");

// read the price per book

scanf ("%f", &book_price);

// print the message to enter the initial of my first name

fprintf (stdout, "\n\n Enter the initial of your first name:\t\t");

// Before reading a character ensure that keyboard buffer does not have any
// redundant characters

fflush (stdin);

// Now read character representing your first name's initial

scanf("%c",&name_initial); // Calculate the total amount of books

total_amount = book_price * books_quantity; // Now Display all values

printf ("\n\n Quantity of Books:\t\t%d", books_quantity);
printf ("\n\n Price per book:\t\t$%.2f", book_price);
fprintf (stdout, "\n\n Total Amount of all the Books: $%.2f", total_amount);

fprintf(stdout, "\n\n Initial of First Name:\t\t %c", name_initial);

// flush any redundant character in the keyboard buffer

fflush(stdin); // hold the display
getchar(); // All ends well so return 0

return 0;

} // main block ends here

Attach your output here after building the application and execute the program – attach the output of your application below:

Now comment out the first fflush(stdin); (or remove the fflush(stdin) )statement in the application. Rebuild the code and execute the application. Input the data and attach the output of your application below:

What do you observe? What happened when fflush(stdin); was commented/removed?

Remove comment (//) (or add the first fflush(stdin); statement) from the first fflush(stdin); statement. Comment out the second fflush(stdin); (or remove statement (the statement just before the getchar() statement).
Rebuild your application, execute the application and enter the relevant inputs. What is your observation and explain? Attach your output now.

II.We discussed the following table in the lecture/presentation. Just for your own practice, try filling out the columns for each:

Quantity Fixed Cost Variable Cost Total Cost Average Fixed Cost   Average Variable Cost   Average Total Cost Marginal Cost
1 100 10

2 100 15

3 100   25

4 100   40

5 100 60

6 100 85

7 100 115

8 100 150

9 100 190

10 100 235

Following are the questions you should be able to answer:

1.What happens to Average Fixed Cost as quantity increases?
2.What happens to Average Variable Cost as quantity increases?
3.What happens to Average Total Cost as quantity increases?
4.What is the distance between Average Variable Cost and Average Total Cost?
5.What is the shape of Average Total Cost? Why is it shaped that way? (In other words, what is going on until Q=7? What happens after Q=7?)
6.What is the relationship between Marginal Cost and Average Total Cost?
7.What is the relationship between Marginal Cost and Average Variable Cost?
8.What happens to Average Total Cost in the Long Run? What is the shape? Why?

Please in C++ thank you! Please also include the screenshot of the output. I have included everything that's needed for this. Pls and thank you!

Write a simple class and use it in a vector.

Begin by writing a Student class. The public section has the following methods:

Student::Student()

Constructor. Initializes all data elements: name to empty string(s), numeric variables to 0.

bool Student::ReadData(istream& in)

Data input. The istream should already be open. Reads the following data, in this order:

• First name (a string, 1 word)

• Last name (also a string, also 1 word)

• 5 quiz scores (integers, range 0-20)

• 3 test scores (integers, range 0-100)

Assumes that all data is separated by whitespace. The method returns true if reading all data was successful, otherwise returns false. Does not need to validate or range-check data; if one of the quiz or test scores is out of range, just keep going.

bool Student::WriteData(ostream& out) const

Output function. Writes data in the following format. Each student’s data is on one line.

• First name (left justified, 20 characters)

• Last name (left justified, 20 characters) • 5 quiz scores (each right justified in a field 4 characters wide)

• 3 test scores (each right justified in a field 5 characters wide)

• new-line character ‘\n’ or use of endl in output function

Note that this is a const method; it should not modify any of the object’s data. Returns true if the attempt to send the data to the stream was successful, false otherwise.

string Student::GetFirstName() const;

string Student::GetLastName() const;

Accessor methods, also known as ‘getters.’ Returns data from inside the function.

float Student::CourseAverage() const

Returns the student’s weighted average as a percentage (float in range 0-100). The quiz scores are averaged together (20-point scale) and are 35% of the course grade. The test are averaged together and are 65% of the course grade. This does not modify any of the object’s data.

bool Student::DisplayCourseAverage(ostream& out) const Prints the student’s course average to the provided output stream, rounded to 3 decimal places. Returns true if the attempt was successful, false otherwise.

string Student::LetterGrade() const Returns a string with the student’s letter grade, using the same grading scale as this course. The class should assume that any input or output streams passed to public methods are already open.

The main program is quite simple. You are provided a data file with data for some number of students. Read the data into a vector. (Hint: Declare one student. Read that student’s data, then add it to the vector. Repeat.) It should then print a roster, showing the name, course average to 3 decimal places, and letter grade for each student in the course. This list should be sorted by student name (sort by last name, break ties using first name; display in usual first-name last-name order).

Here is the input.txt

23
MIRANDA BOONE 17 17 13 17 20 86 91 71
LARRY MARSH 16 11 20 15 11 78 82 96
JANIE FOWLER 18 18 19 18 20 80 90 69
ALBERTO GILBERT 15 20 18 17 19 51 76 99
SUE LEONARD 12 15 12 18 17 85 77 100
CARL BALLARD 16 12 16 16 20 65 80 92
LESLIE PEREZ 13 18 17 12 20 81 81 96
MORRIS NEWTON 20 19 19 20 16 75 80 66
BRANDI LAMB 19 17 20 12 16 97 67 65
HERBERT HARVEY 20 16 11 14 12 80 100 80
RUDOLPH FISHER 17 18 20 18 18 82 68 77
LAURIE PHELPS 18 11 13 16 15 90 93 76
PHILIP ZIMMERMAN 17 13 18 16 18 79 78 64
BRAD HAYES 17 20 13 11 20 81 92 87
BELINDA JACKSON 18 10 16 18 16 59 76 87
JESSIE MORAN 16 14 13 19 19 78 79 66
BRIDGET KELLER 19 14 15 20 20 90 66 66
CHAD RODRIGUEZ 15 16 20 18 18 86 71 79
KENNETH KELLY 11 19 17 19 18 76 75 67
CASSANDRA MASON 14 20 18 20 17 85 76 100
RANDY JACKSON 18 19 15 19 17 67 61 65
GARRY CLAYTON 10 16 18 14 19 86 85 84
NICK FLOYD 18 13 20 17 16 79 76 81

3.1. Carefully explain the following observations:

(i) Silver dissolves poorly in copper at 100°C.

(ii) Copper dissolves poorly in silver at 100°C.

(iii) The amount of copper (in atom per cent) that can dissolve in silver at 100°C is greater than the amount of silver (in atom per cent) that can dissolve in copper at 100°C.

The following are the cash flows of two projects: Year Project A Project B 0 ?$ 220 ?$ 220 1 100 120 2 100 120 3 100 120 4 100 If the opportunity cost of capital is 10%, what is the profitability index for each project? (Do not round intermediate calculations. Round your answers to 4 decimal places.)

Shelly Herzog opens a research service near a college campus. She names the corporation Herzog Researchers, Inc. During the first month of operations, July 20X3, the business engages in the following transactions:

a. Herzog Researchers, Inc., issues its common stock to Shelly Herzog, who invests $25,000 to open the business.

b. The company purchases on account office supplies costing $350.

c. Herzog Researchers pays cash of $20,000 to acquire a lot next to the campus. The company intends to use the land as a building site for a business office.

d. Herzog Researchers performs research for clients and receives cash of $1,900.

e. Herzog Researchers pays $100 on the account payable it created in transaction b.

f. Herzog pays $2,000 of personal funds for a vacation.

g. Herzog Researchers pays cash expenses for office rent ($400) and utilities ($100).

h. The business sells a small parcel of the land for its cost of $5,000.

i. The business declares and pays a cash dividend of $1,200.

Required

1. Analyze the preceding transactions in terms of their effects on the accounting equation of Herzog Researchers, Inc. Use Exhibit 2-1, Panel B as a guide.

2. Prepare the income statement, statement of retained earnings, and balance sheet of Herzog Researchers, Inc., after recording the transactions. Draw arrows linking the statements.

First part of the question: Eighteen-year-old Linus is thinking about taking a five-year university degree. The degree will cost him $25,000 each year. After he's finished, he expects to make $50,000 per year for 10 years, $75,000 per year for another 10 years, and $100,000 per year for the final 10 years of his working career. All these values are stated in real dollars. Assume that Linus lives to be 100 and that real interest rates will stay at 5% per year throughout his life.

Linus is also considering another option. If he takes a job at the local grocery store, his starting wage will be $40,000 per year, and he will get a 3% raise each year, in real terms, until he retires at the age of 53. Assume that Linus lives to be 100.

i.    Calculate the present value of Linus’s lifetime earnings, using a spreadsheet or using the growing annuity formula. You can find the formula in the lesson notes, at the end of Note 7 in Lesson 4.    (1 mark)

ii. Use that value to determine Linus’s permanent income, i.e., how much can Linus spend each year equally over the rest of his life?                                                          (1 mark)

c.       Do you think Linus is better off choosing option a. or option b.? Consider both financial and non-financial measures.

A financial institution has the following market value balance sheet structure:

a. The bond has a 10-year maturity, a fixed-rate coupon of 12 percent paid at the end of each year, and a par value of $10,200. The certificate of deposit has a 1-year maturity and a 6 percent fixed rate of interest. The FI expects no additional asset growth. What will be the net interest income (NII) at the end of the first year? (Note: Net interest income equals interest income minus interest expense.)
b. If at the end of year 1 market interest rates have increased 100 basis points (1 percent), what will be the net interest income for the second year? Is the change in NII caused by reinvestment risk or refinancing risk?
c. Assuming that market interest rates increase 1 percent, the bond will have a value of $9,677 at the end of year 1. What will be the market value of the equity for the FI? Assume that all of the NII in part (a) is used to cover operating expenses or is distributed as dividends.
d. If market interest rates had decreased 100 basis points by the end of year 1, would the market value of equity be higher or lower than $1,200?
e. What factors have caused the changes in operating performance and market value for this FI?

2. Consider the following sample of exam scores, arranged in increasing order. DO IT BY HAND AND SHOW WORK. NO WORK NO CREDIT. MAKE SURE YOU USE THE FORMULAS IN CLASS NOTES TO FIND LOCATION FOR PERCENTILES/QUARTILES. THE TEXTBOOK USES A DIFFERENT APPROACH AND RESULTS WILL BE DIFFERENT!

   28 57 58 64 69 74 79 80 83 85 85 87 87 89 89 90 92 93 94 94 95 96 96 97 97 97 97 98 100 100

   (Hint: the sample mean of these exam scores is 85)

1. Determine the interquartile range (IQR).

2. Obtain the five number summary.

3. Identify potential outliers if any.

4. Construct and interpret a boxplot or if appropriate, a modified boxplot.

4. Using the data in question 3 above, use Excel to

1. Determine the frequency distribution of exam scores. Use cutpoint grouping with

   25 as the first cutpoint and classes of equal width 5.

2. Determine the relative frequency distribution of exam scores

3. Find the following descriptive statistics of the exam scores using excel functions:

   Sample size (count), Mean, Variance, Standard Deviation, Minimum, Maximum, Range, Summation of observations in sample (sum), Mode, Median, Lower quartile-Q1, Middle quartile-Q2 (same as median), upper quartile-Q3 and Inter- quartile Range (IQR).