XYZ Company, LLC, plans to offer professional marketing services to engineers and scientists who have developed new technology they wish to bring to market. XYZ expects to have an average payroll cost per hour of $51.50 and monthly fixed costs of $3,450.

1. How much per hour should XYZ charge its customers if it wishes to achieve a 55% margin?

2. How much per hour should XYZ charge its customers if it wishes to achieve a 65% margin?

3. If XYZ feels it can charge its customers no more than $135 per hour, and it wants to maintain a margin of 65%, to what amount does XYZ need to reduce its average payroll cost per hour?

4. Considering the price and variable cost from Q#3, how many hours of marketing services must XYZ sell each month in order to breakeven?

5. Suppose XYZ wishes to make a profit of $12,500 per month at a price of $135 per hour and a margin of 70%. How many hours of marketing services does XYZ need to sell per month?

Commercial Bank and Trust Company is studying the use of its automatic teller machines (ATMs). Of particular interest is whether young adults (under 25 years) use the machines more than senior citizens. To investigate further, samples of customers under 25 years of age and customers over 60 years of age were selected. The number of ATM transactions last month was determined for each selected individual, and the results are shown below. Under 25 10 10 11 15 7 11 10 9 Over 60 4 8 7 7 4 5 1 7 4 10 5 1. Find the degrees of freedom for unequal variance test. (Round down answer to nearest whole number.) 2. State the decision rule for 0.01 significance level: H0 μunder ≤ μover; μunder > μover. (Round your answer to 3 decimal places.) 3. Compute the value of the test statistic. (Round your answer to 2 decimal places.) 4. At the .01 significance level, can the bank management conclude that younger customers use the ATMs more?

The following sample data reflect shipments received by a large firm from three different vendors and the quality of those shipments. (You may find it useful to reference the appropriate table: chi-square table or F table)

b-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)

The following sample data reflect shipments received by a large firm from three different vendors and the quality of those shipments. (You may find it useful to reference the appropriate table: chi-square table or F table)

b-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)

The owner of Haverty’s Furniture Company was studying the relationship between sales and the amount spent on advertising. The sales information for the last four months is repeated below:

Draw a scatter diagram and discuss whether or not it indicates that there is a relationship between the advertising expense and sales revenue.

Compute the coefficient of correlation. Interpret it.

Compute the coefficient of determination. Interpret it.

Test to determine whether the coefficient of correlation in the population is significantly different from zero. Use alpha 0.05.

Develop the estimated regression equation/the least squares line that could be used to predict the sales revenue based on the advertising expense. Interpret the regression coefficients.

Compute the standard error of estimate.

Test to determine whether the regression slope coefficient in the population is significantly different zero. Use alpha 0.05.

Are the results from part d and g consistent? Should they be? Justify your answer.

Estimate sales when $3 million is spent on advertising.

I am trying to determine operating cash flow for years 1, 2, 3 and 4 for a company who is evaluating a new MRI machine. I calculated the revenue based on # of scans times the net revenue for each scan and got $900,000. Should this figure remain the same for years 2, 3, and 4 or does the neutral inflation rate of 2% need to be added to each?

Also, does depreciation, variable and fixed costs change with the 2% neutral inflation rate? I am thinking that fixed costs and depreciation will not change.

Compare centralized exchanges to OTC markets. In your opinion, why are bonds typically traded on OTC markets?

Describe Natural Gas' supply chain from raw materials to consumer, and how it's financially traded.

Stacks & Queues
C++

You are given a stack of N integers such that the first element represents the top of the stack and the last element represents the bottom of the stack. You need to pop at least one element from the stack. At any one moment, you can convert stack into a queue. The bottom of the stack represents the front of the queue. You cannot convert the queue back into a stack. Your task is to remove exactly K elements such that the sum of the K removed elements is maximized.

Input format :
The first line consists of two space-separated integers N and K. The second line consists of N space-separated integers denoting the elements of the stack.

Output format : Print the maximum possible sum of the K removed elements

Sample Input:

10 5
10 9 1 2 3 4 5 6 7 8

Sample Output:

40

Explanation Pop two elements from the stack. i.e {10,9} Then convert the stack into queue and remove first three elements from the queue. i.e {8,7,6}. The maximum possible sum is 10+9+8+7+6 = 40

This is my code so far

#include <iostream>
#include <deque>
std::deque<int> stacque;
using namespace std;
void printDeque(deque<int> vector) {
for(int i=0;(unsigned)i<vector.size();i++) {
cout<<vector.at(i)<<" ";
}
cout<<endl;
}

int main() {
int n,q;
cin>>n;
cin>>q;
for(int i=0;i<n;i++){
int x;
cin>>x;
stacque.push_back(x);
}
/*cout<<n<<" "<<q<<endl;
printDeque(stacque);*/

int sum=0;
for(int i=0;i<q;i++){
  
if(stacque.front()>stacque.back()){
int a;
a=stacque.front();
sum+=a;
stacque.pop_front();
  
}
else {
int b;
b=stacque.back();
sum+=b;
stacque.pop_back();
  
}
}
cout<<sum<<endl;

return 0;
}


my output for the test is nearly correct but its only slightly off

input test 1

420 135
46 1 19 60 86 64 5 98 4 85 93 25 82 56 83 31 92 23 77 36 17 63 31 61 92 31 86 82 91 84 26 54 27 61 95 87 53 50 72 30 73 49 35 4 21 36 73 50 97 70 95 7 81 92 76 33 77 48 50 100 80 22 35 67 40 56 28 31 31 60 8 10 31 76 99 69 56 65 2 79 15 5 68 82 55 60 16 95 44 34 2 54 71 88 100 100 76 16 49 46 69 90 41 11 33 45 8 58 37 40 9 65 50 79 15 54 6 98 11 56 77 20 89 22 18 24 33 12 52 33 31 31 71 1 26 68 62 53 14 5 70 79 18 12 71 93 60 37 23 86 8 31 73 71 76 70 51 88 55 68 59 100 45 49 16 35 61 78 29 80 74 19 56 72 92 49 17 86 17 48 58 68 57 100 31 87 38 11 63 7 48 59 73 69 84 58 77 74 1 4 55 53 52 96 99 74 77 8 44 40 55 50 99 28 13 40 83 43 68 97 53 81 53 49 86 68 87 92 22 65 26 2 14 62 51 76 67 1 20 99 60 13 72 69 17 55 92 94 1 28 69 72 71 42 31 79 83 100 71 56 91 40 20 33 1 12 96 27 95 29 57 40 70 57 8 80 93 4 30 31 82 53 98 67 75 6 60 49 23 54 52 67 84 71 67 85 92 58 42 80 40 87 60 55 17 73 90 3 55 2 63 86 53 60 71 16 34 46 1 49 10 82 4 67 64 3 91 20 56 98 22 45 14 85 93 3 54 77 31 49 67 15 32 31 18 7 95 34 12 96 99 30 88 91 42 85 72 74 12 4 40 97 79 65 29 29 48 76 35 73 66 39 9 86 7 99 22 46 66 48 21 30 52 69 22 26 16 52 48 62 55 97 60 86 86 59 68 94 21 51 90 32 32 94 12 96 29 73 4 98 13 80 72 67 18 68 15 26 79 38
Your output
7033
Your output does not contain
7510

input test 2

Input
490 231
68 51 46 65 74 64 38 94 96 65 39 9 26 86 99 93 37 65 11 86 53 45 40 56 43 32 98 70 57 89 36 38 51 62 23 86 18 55 30 37 52 21 59 60 15 78 84 23 98 44 78 68 94 49 59 43 63 91 71 9 75 89 76 23 100 59 18 97 89 2 25 33 59 48 84 50 78 71 84 3 96 60 7 38 11 16 99 41 11 91 65 8 10 29 14 88 7 70 80 56 38 54 16 42 1 70 1 96 97 62 82 42 17 84 96 73 77 78 85 82 27 72 33 57 38 57 95 76 59 32 26 76 9 22 19 88 14 43 46 13 20 7 7 62 58 76 54 92 35 78 17 86 5 86 27 44 75 76 15 21 34 15 14 83 62 95 40 42 45 16 10 38 77 1 90 72 27 72 22 75 93 49 82 52 95 6 76 55 66 66 53 85 70 61 38 64 22 33 58 50 63 39 35 90 54 53 45 71 95 93 78 51 47 94 81 6 26 22 18 1 82 77 86 49 100 5 88 40 4 60 79 26 88 38 12 81 70 95 80 37 28 57 80 68 1 43 9 10 42 16 18 67 99 3 41 50 35 48 42 42 16 47 11 75 52 76 33 60 10 47 96 5 12 10 86 61 80 86 58 45 63 95 33 51 38 45 95 2 49 76 10 50 3 62 39 94 47 33 54 99 76 60 57 2 8 47 18 90 28 99 66 47 8 95 85 25 42 90 27 66 100 22 18 93 95 83 27 89 4 21 39 80 46 14 46 58 55 12 83 95 99 3 86 8 43 92 24 72 7 47 34 78 77 87 100 3 11 72 86 37 48 68 28 9 92 59 95 39 59 97 64 21 95 94 25 48 42 91 76 16 97 72 71 49 24 30 18 90 64 10 44 6 87 95 37 90 52 37 53 86 54 95 11 28 83 12 65 87 73 58 83 9 85 20 15 73 21 39 87 73 75 44 50 99 37 92 82 66 68 60 72 60 25 72 35 11 67 4 86 1 10 3 79 28 2 44 29 33 71 22 99 13 77 3 36 54 17 61 79 77 83 34 39 31 100 46 23 54 83 3 13 62 31 81 58 17 16 92 54 92 39 51 37 68 94 63 73 26 45 1
Your output
12257
Your output does not contain
12595

i passed one of the tests but these 2 are only slightly off and i dont know why.
please provide a solution in C++

A fund manager has a well-diversified portfolio that mirrors the performance of the S&P 500 and is worth $360 million. The value of the S&P 500 is 1,200, and the portfolio manager would like to buy insurance against a reduction of more than 5% in the value of the portfolio over the next six months. The risk-free interest rate is 6% per annum. The dividend yield on both the portfolio and the S&P 500 is 3%, and the volatility of the index is 30% per annum.

a. If the fund manager buys traded European put options, how much would the insurance cost?

b. Explain carefully alternative strategies open to the fund manager involving traded European call options, and show that they lead to the same result.

c. If the fund manager decides to provide insurance by keeping part of the portfolio in risk-free securities, what should the initial position be?

d. If the fund manager decides to provide insurance by using nine-month index futures, what should the initial position be?