Low-density lipoprotein (LDL) is an important part of the blood cholesterol test. The mean LDL for people 65 and older is 130 with a standard deviation of 12. The mean LDL for people under 40 is 100 with a standard deviation of 12. A health center had a free blood cholesterol test for all people in the community. The blood test results for the people under 40 and 65 an over are given in the attached excel file called "Cholesterol Data-2" What is the probability that the mean LDL of 8 people who are 65 or over would exceed the mean LDL of 8 people who are under 40 by the difference in these two samples of more? (give your answer to at least 3 decimal places)

Experimental Organic Chemistry 1

HPLC Questions

- What's the difference between single point calibrations and five point calibrations?

- How could you improve your resolution on a chromatograph?

- What's the difference between isocratic runs and gradient runs?

look for an investment company that runs multiple funds choose one of its fund and comment on the fees ,return ,risk tolerance and objective upload the fact sheet with your comments

Please assist with this question:

Having attended a course on activity-based costing, you are decide to experiment by applying the principles of ABC to four products currently made and sold by your company. Details of the products and relevant information are given below for one period.

The four products are similar and are usually produced in the production runs of 20 units and sold in batches of 10 units.

The production overhead is currently absorbed by using a machine hour rate and the total of the production overhead for the period has been analysed as follows:

You have ascertained that the cost drivers to be used are as listed below for the overheard costs down.

The number of requisitions raised on the store was 20 for each product, while the number of orders executed was 42, each order being for a batch of 10 of a product.

Required:

1. Calculate the total costs for each product if all overhead costs are absorbed on a machine hour basis.

2. Calculate the total cost for each product using the activity-based costing.

3. Calculate and list the unit product costs from your figures in 1 and 2 to show the differences. Comment briefly on any conclusions which may be drawn that have pricing and profit implications.

Please with answers to the above question.

Regards,

Having attended a course on activity based costing (ABC) you decide to experiment by applying the principles of ABC to the four products currently made and sold by your company. Details of the four products and relevant information are given below for one period.

Product                                              A                        B                  C                    D

Output in units

Cost per unit

Direct material (Ksh) Direct labour (Ksh)

120

40

28

100                 80

50                 30

21                 14

120

60

21

Machine hours per unit (hours)             4                         3                 2                        3

The four products are similar and are usually produced in production runs of 20 units and sold in batches of 10 units. The production overhead is currently absorbed by using a machine hour rate and the total of the production overhead for the period has been analyzed as follows:

Ksh

You have ascertained that the cost drivers to be used are as listed below for the overhead costs shown:

Costs                                                                                Cost driver

Set up costs Stores receiving Inspection/Quality control

Materials handling and dispatch

Number of production runs

Requisitions raised

Number of production runs

Orders executed

The number of requisitions raised on the stores was 20 for each product and the number of orders executed was 42, each order being for a batch of 10 of a product.

Required:

a)         Calculate the total costs for each product if all overhead costs are absorbed on a machine hour basis.                                                                                                                                  

b)       Calculate the total costs for each product using activity based costing                   c)       Calculate and list the unit product costs from your figures in (a) and (b)               d)       Comment briefly on any conclusions which may be drawn which could have pricing and

profit implications                                                                                                      ( Total 20 Marks)

College Supply Company (CSC) makes three types of drinking glasses: short, medium, and tall. It presently applies overhead using a predetermined rate based on direct labor-hours. A group of company employees recommended that CSC switch to activity-based costing and identified the following activities, cost drivers, estimated costs, and estimated cost driver units for Year 5 for each activity center.

In addition, management estimated 2,000 direct labor-hours for year 5.

Assume that the following cost driver volumes occurred in February, year 5:

Direct labor costs were $20 per hour.

Required:

a. Compute a predetermined overhead rate for year 5 for each cost driver recommended by the employees. Also compute a predetermined rate using direct labor-hours as the allocation base. (Round your answers to 2 decimal places.)

b. Compute the production costs for each product for February using direct labor-hours as the allocation base and the predetermined rate computed in requirement a. (Do not round intermediate calculations.)

c. Compute the production costs for each product for February using the cost drivers recommended by the employees and the predetermined rates computed in requirement a.(Note: Do not assume that total overhead applied to products in February will be the same for activity-based costing as it was for the labor-hour-based allocation.) (Do not round intermediate calculations.)

The following are the runs scored totals for 9 players for the 2016 New York Mets:

88,72,65,57,45,38,31,30,27

1. Find the mean and median
2. Find the standard deviation of this population
3. Considering this as a normal sample of National League players for the 2016 season, find a 99% Confidence Interval for the actual mean of Runs Scored for NL players, 2016 .
4. Considering this as a normal sample of National League players for the 2016 season, find a 90% Confidence Interval for the actual mean of Runs Scored for NL players, 2016 .

**PLEASE SHOW HOW TO DO IN EXCEL

**

1. Patients are known to arrive at a pharmacy randomly, with an average rate of four patients arriving per hour

1.1 What is a probability that exactly three patients will arrive at the pharmacy during a particular hour

1.2 What is the probability that only one patient will arrive at the pharmacy during a 30 minutes interval

1.3 What is the probability that seven patient will arrive at the pharmacy during a two hour interval

2. An aeroscape compagny has submitted bids on two separate government contracts A and B. the compagny feels that it has 50% chance of winning contract A and 40% chance of winning contract B. Futhermore, it belives that winning contract A is independent of winning contract B.

2.1 What is the probability that the compagny will win both contracts?

2.2 What is the probability that the compagny will win at least one of the contracts?

3. A compagny has two vacancies at the junior executive level. Ten people, consisting of seven men and three women, are eligible and equally qualified. The compagny has decided to draw two names at random from the list of those eligible.

3.1 What is the probability that both positions will be filled by women?

3.2 What is the probability that at least one of the positions will be filled by a woman?

3.3 What is the probability that both positions will be filled by a man?

3.4 From your answers, what conclusions can be reached about the vacancies?

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++