This is a question answered by R.

**In this problem, we'll use simulation to think about survey sampling. Suppose I want to plan a survey to learn what percentage of students prefer coffee to tea.**

a. **Let *X* be the number of students in my sample that prefer coffee. If I survey *n* students, and the true proportion of students that prefer coffee is *p*, then we can model *X* as a Binomial(*n*, *p*) random variable. If I survey ten students, what is the theoretical probability that more than 60% of my sample prefer coffee? Your answer should be a formula or an R command you could use to answer this question for any p**

c. **We can also use simulation to explore this situation. Generate 1000 samples from a Binomial(10, 0.5) random variable X. What proportion of generated samples have sample proportions greater than 60%? Using your formula from a. with p = 0.5, calculate the theoretical probability of observing a sample proportion greater than 60% and compare. **

Franklin Training Services (FTS) provides instruction on the use of computer software for the employees of its corporate clients. It offers courses in the clients’ offices on the clients’ equipment. The only major expense FTS incurs is instructor salaries; it pays instructors $6,000 per course taught. FTS recently agreed to offer a course of instruction to the employees of Novak Incorporated at a price of $700 per student. Novak estimated that 20 students would attend the course.

a. Relative to the number of students in a single course, is the cost of instruction a fixed or a variable cost?

b. Determine the profit, assuming that 20 students attend the course.

c. Determine the profit, assuming a 10 percent increase in enrollment (i.e., enrollment increases to 22 students). What is the percentage change in profitability?

d. Determine the profit, assuming a 10 percent decrease in enrollment (i.e., enrollment decreases to 18 students). What is the percentage change in profitability?

e. Explain why a 10 percent shift in enrollment produces more than a 10 percent shift in profitability. Use the term that identifies this phenomenon.

please provide me an answers for the questions below using the above case study. and also please provide me the references used for the information. thank you

Case study: Asthma

The nursing instructor is discussing asthma and its various treatments with the students. The instructor tasks the students with preparing a patient teaching brochure about the use of the leukotriene receptor antagonists (LTRA) montelukast (Singulair®) in the treatment of asthma.

1. What information will the students include in the brochure regarding the adverse effects of montelukast?

2. What information will the students include in the brochure regarding drug interactions that can occur with montelukast?

3. What are three other patient teaching points that the students should include in the brochure regarding this medication?

4. The physician ordered 1g of Cefuroxime IV. You have on hand 125mg/5ml vial of Cefuroxime. How many mls of Cefuroxime will you administer?

5. Physician order reads: administer Cefuroxime IV over one hour in a 100 ml bag. The drop factor of tubing is 60 gtts/ml. What is the drip rate?

Introduction:

Blogging is one of the fundamental social media practices–arguably the first widespread form of social media. Blogging is one important way in which people take part in conversations within their area of interest, establish their expertise, and construct an online identity. The blogosphere is a place where communities form, grow, change, and dissolve.

The blog is a format that allows students to reflect on what they know, further integrate their knowledge, and show their unique understanding to others. Blog posts tend to be qualitatively different from journals and formal academic papers. They allow students to communicate in ways that are personally meaningful and consistent with the current “content creation” aspect of our digital culture. Also, anecdotal evidence strongly suggests that students work harder to prepare work that will be shared with a broader audience than their instructor.

Deliverable:

Requirement:

Students will create a 600 – 1,000 word blog post.

Students are responsible for writing a blog post on any (school appropriate) topic of their choosing. Example topics can include areas such as: digital marketing, social media marketing, advice.

Please help ASAP .Thank you

One measure of student success for colleges and universities is the percent of admitted students who graduate. Studies indicate that a key issue in retaining students is their performance in so-called gateway courses. These are courses that serve as prerequisites for other key courses that are essential for student success. One measure of student performance in these courses is the DFW rate, the percent of students who receive grades of D, F, or W. A major project was undertaken to improve the DFW rate in a gateway course at a large midwestern university. The course curriculum was revised to make it more relevant to the majors of the students taking the course, a small group of excellent teachers taught the course, technology was introduced, and student support outside of the classroom was increased.

Do you think that the changes in this gateway course had an impact on the DFW rate? Write a report giving your answer to this question. Support your answer by an analysis of the data.

The prices of condos in a city are normally distributed with a mean of $100,000 and a standard deviation of $32,000.

Answer the following questions rounding your solutions to 4 decimal places.

1. The city government exempts the cheapest 6% of the condos from city taxes. What is the maximum price of the condos that will be exempt from city taxes?

2. If 2% of the most expensive condos are subject to a luxury tax, what is the minimum price of condos that will be subject to the luxury tax?

A professor at a local university noted that the grades of her students were normally distributed with a mean of 73 and a standard deviation of 11.

Answer the following questions rounding your solutions to 4 decimal places.

1. The professor has informed the class that 7.93 percent of her students received grades of A. What is the minimum score needed to receive a grade of A?

2. Students who made 57.93 or lower on the exam failed the course. What fraction of students failed the course?

3. If 69.5 percent of the students received grades of C or better, what is the minimum score of those who received C's?

A HW has to be assigned and evaluated in these Corona times. An Assistant with a mask will take sterilized homeworks from the Professor of the course and distribute it to the students. There are N students in the course. All the students are located in different places and since they are doing social distancing they do not go anywhere and stay at home and also do not meet any friend. The Assistant has to distribute the HW to all the students one by one. The assistant waits for the student to complete her/his homework and take it back. Student i needs xi minutes to complete the homework. Of course, it takes some time to go from one place to another and the assistant wants to minimize his time for doing this job. Therefore, he will take the HW from the Professor, go to each student exactly once and finally bring back together all the solutions (of the students) to the Professor at the very end. Please help this Assistant in this work to minimize his time for doing this duty.

Question 1. Model this problem as an IP problem. (Please clearly state that which are parameters and which are decision variables)

Use JAVA to Design a simple registration system that allows Student to register in a course.

Requirements

• using 2 classes: class Student & class Course.
• Implement the scenarios in class Test’s main method.
• Each student has a name and an id variable.
• Each object of class Student is initialized using values of name and id passed to constructor.
• Class Student has get methods for its instance variables.(getters and setters)
• Each Course has a name, and a variable numberOfStudent representing the number of registered students.
• A course can have a maximum number of 10 students registered in it.
• Class Course store the registered students in students which is an array of type Student. When a student register in a course, he is added to the array. Each object of class Course is initialized using the title(name).
• Class Course has the following methods:
  • method getStudents(): return the array of registered students;
  • method boolean isFull(): return true if the course is full,
  • get method for the name and numberOfStudent field;
  • method registerStudent (Student student): if the course is not full, register a student in course.

1. Forty-three students participated in a lottery for one of three free laptops. Fifteen of the students were in the same sorority. When all three of the winners were in the same sorority, several students were concerned that the drawing was not fair. Use a simulation of 10 trials to determine whether an all-sorority outcome could reasonably be expected if everyone had an equal opportunity to win one of the laptops.

1. Identify the component to be repeated: (2 points)
2. Explain how you will model the outcome: (3 points)
3. Identify the response variable: (2 points)
4. Run the ten trials and record your results. Use the random number table shown below beginning at Row 20. (5 points)
5. Summarize your results (1 point):
6. State your conclusion (5 points):

Cars on Campus. Statistics students at a community college wonder whether the cars belonging to students are, on average, older than the cars belonging to faculty. They select a random sample of 11 cars in the student parking lot and find the average age to be 7.5 years with a standard deviation of 5.6 years. A random sample of 20 cars in the faculty parking lot have an average age of 4.2 years with a standard deviation of 4 years.

1. The null hypothesis is H0:μs=μfH0:μs=μf. What is the alternate hypothesis?
A. HA:μs>μfHA:μs>μf
B. HA:μs<μfHA:μs<μf
C. HA:μs≠μfHA:μs≠μf

2. Calculate the test statistic.  ? z t X^2 F  =

3. Calculate the p-value for this hypothesis test.
p value =

4. Suppose that students at a nearby university decide to replicate this test. Using the information from the community college, they calculate an effect size of 0.72. Next, they obtain samples from the university student and faculty lots and, using their new sample data, conduct the same hypothesis test. They calculate a p-value of 0.0149 and an effect size of 0.423. Do their results confirm or conflict with the results at the community college?
A. It can neither confirm or contradict the community college results because we don't know the sample sizes the university students used.
B. It contradicts the community college results because the p-value is much bigger
C. It confirms the community college results because the p-value is much smaller.
D. It confirms the community college results because the effect size is nearly the same.
E. It contradicts the community college results because the effect size is much smaller.