A. Suppose you want to study the number of hours of sleep full-time undergraduate students at Belmont get each evening. To do so, you obtain a list of full-time undergraduate students at Belmont, obtain a simple random sample of ten students, and ask each of them to disclose how many hours of sleep they obtained the most recent Monday.

1. What is the population of interest in this study? What is the sample?

2. Explain why number of hours of sleep in this study is a random variable.

3. After you obtain your ten observations, you compute the mean number of hours of sleep. Is

   this a statistic or a parameter? Why?

4. Is the mean number of hours computed in part (c) a random variable? Why? If it is a random

   variable, what is the source of variation?

Using MATLAB

A list of 30 test scores is: 31, 70, 92, 5, 47, 88, 73, 51, 76, 80, 90, 55, 23, 43, 98, 36, 87, 22, 61, 19, 69, 26, 82, 99, 71, 59, 49, 64

Write a computer program that determines how many grades are between 0 and 19, between 20 and 39, between 40 and 59, between 60 and 79, and between 80 and 100. The results are displayed in the following form:

Grades between 0 and 19, 2 students

Grades between 20 and 39, 4 students

Grades between 40 and 59, 6 students

and so on (Hint: use the command fprintf to display the results).

Quiz 2

Hippocrates

Thomas Sydenham

James Lind

Benjamin Jesty

Edward Jenner

Ignaz Semmelweis

John Snow

Louis Pasteur

Robert Koch

John Graunt

William Farr

Bernardino Ramazzini

Edgar Sydenstricker

Doll and Hill

Florence Nightingale

Janet Lane-Claypon

Alice Hamilton

Wade Hampton Frost

Identified various modes of transmission and incubation times for cholera

B. Provided classifications of morbidity statistics to improve the value of morbidity information

C. Observed in the 17th century that certain jobs carried a high risk for disease

D. Introduced the words "epidemic" and "endemic"

E. Advanced useful treatments and remedies including exercise, fresh air, and a healthy diet, which other physicians rejected at the time

F. Through an experimental study, showed that lemons and oranges were protective against scurvy

G. Invented a vaccination for smallpox

H. The father of modern epidemiology

I. Used data as a tool for improving city and military hospitals

J. Conducted the first cohort study investigating the association between smoking and lung cancer

K. Promoted the idea that some diseases, especially chronic diseases, can have a multifactorial etiology

L. Observed that milkmaids did not get smallpox, but did get cowpox

M. Developed a vaccine for anthrax

N. Pioneered the use of cohort and case-control studies to identify risk factors for breast cancer

0. A pioneer in the field of toxicology

P. Credited for producing the first life table

Q. Used photography to take the first pictures of microbes in order to show the world that microorganisms in fact existed and that they caused many diseases

R. A statistician who was a pioneer in developing the theory of epidemiologic study design and causal inference

S. Discovered that the incidence of puerperal fever could be drastically cut by the use of hand washing standards in obstetrical clinics

2. List some of the contributions of the microscope to epidemiology.

3. What two individuals contributed to the birth of vital statistics?

What type of epidemiologic study was used by James Lind?

5. What types of epidemiologic studies were used by Doll and Hill?

1. Explain the role of transparency and accountability within a benefits realization plan.

2. In your own words, how do you distinguish between the neutral zone and the new beginning that Bridges discusses in your readings?

3. CMH shares a leadership value ladder which includes tips for how to lead through change. If you were to add a third step in the ladder of leadership behaviors needed through change, what would it be? Explain your response.

1.

Write a function named “Number” that reads in a list of numbers until the user enters 0. It will return true if the user has entered more even numbers than odd numbers; otherwise it returns false.

2.

Write a code segment to sort an array of students in ascending order of their IDs. Assume the array has been filled with names and assume the following declaration:

struct Student {

string name;

int ID;

}

Student roster[30];

// Code to fill in the student info for all students.

// Sort the roster

// your code goes here

NBC Universal, Condé Nast, the Hearst Corporation, Fox Searchlight, and even Charlie Rose have been or are defendants in class action lawsuits brought against them by unpaid interns who served internships at these companies or for individuals. The suits seek to have back wages paid to those who have served as interns. Traditionally, an unpaid internship was an opportunity for those who lack experience to break into a particular field and gain contacts and experiences by working in that field. The arrangement was viewed as a win-win opportunity. Young people had the opportunity to get a foot in the door for a job, make contacts for future employment, and gain experience. The companies who had the unpaid interns had the opportunity to see their work habits, abilities, and fit within the organization. The companies also held their help—and all without paying wages. However, the U.S. Department of Labor has held that an internship can be unpaid only if the intern is part of an educational training program. If the employer uses the intern in lieu of hiring additional employees or using existing staff, then they are not interns and must be paid compensation according to the terms of the FLSA. The U.S. Supreme Court has ruled on this standard in Walling v. Portland Terminal Co., 330 U.S. 148 (1947). Examples of students involved in the intern litigation include the following: • Matthew Lieb served as an intern at the New Yorker (owned by Condé Nast) in 2009 and 2010. During his time there, he proofed and edited articles, did research for articles, and maintained an online cartoon database. He worked three days per week from 10:00 a.m. until 5:30 p.m. and was paid less than $1 per hour. • Lauren Ballinger served as an intern at W magazine in 2009 and was paid $12 per day to run errands for editors and deliver items to vendors. A court has already found that Fox Searchlight Pictures violated the FLSA when it used unpaid interns in its making of the film Black Swan. The film grossed $300 million, and the class group that brought the suit had worked for very little or nothing on the film. [Glaat, et al. v. Fox Searchlight Pictures, Inc., 2 F.R.D. 516 (S.D.N.Y. 2013)] However, other cases have held that the Department of Labor test for paying interns is too rigid. [Solis v. Laurelbrook Sanitarium and School, Inc., 642 F.3d 518 (6th Cir. 2011)] But see Winfield v. Babylon Beauty School of Smithtown Inc., 89 F. Supp. 3d 556 (E.D.N.Y. 2015). Charlie Rose faced a lawsuit from 190 unpaid interns who worked for him from 2006 through 2012 and settled the case for $110,000. The interns will receive $110 for each week that they worked, for a maximum of 10 weeks. The litigation is likely to continue because a 2013 survey by the National Association of Colleges and Employers (NACE) found that one-half of college students report that their internships were unpaid. The survey was conducted in 2013 and involved 30,000 students. The survey also found that students who held paid internships were more likely to obtain a job with that employer and that their salaries were higher: 60% of students with paid internships got jobs with their employers at a $51,930 starting salary, whereas 37% of students with unpaid internships got jobs with their employers at a starting salary of $35,721.

Please review the For the Manager's Desk section and address the following elements:

Discuss the ethical issues in long-hour internships.

What about internships for no pay?

Are there benefits?

Do both sides benefit from the internship programs?

Does daily cardio exercise make subjects perform better on tests of intelligence? A study was conducted in which the daily habits of 45 college students were documented, focusing on the number of hours spent on exercise in a week. After a week, the subjects were given a computer-based intelligence test on which they receive a score on a 0 to 100 point scale. Their scores were compared with how many hours they spent exercising that week.

Select one or more:

The explanatory variable is the score on the computer-based intelligence test.

The response variable is the score on the computer-based intelligence test.

The explanatory variable is the number of hours exercised during the week.

The response variable is the number of hours exercised during the week.

This is best described as an observational study.

This study is best described as an experiment.

A local corporation was interested in the purchasing habits of Monterey County residents. Specifically one of the things they were interested in was the proportions of residents that did a major home improvement project in the last year. The corporation used a list of all households to take a simple random sample of households. The researcher then visited each of the sampled homes and found that 21 of 100 homes had completed a major home improvement project.

For this situation which of the following would be most likely to lead to a problem of non-response.

Select one:

If the survey only looked at 100 households even though there are over 200,000 homes in Monterey County.

If the list of households only included homes that had been sold to a new owner in the last 10 years.

If the researchers actually visited 400 households but only 100 of them were willing to answer the questions on the survey.

If some of the subjects did not understand what the researcher meant by “home improvement” projects.

A researcher wants to find out how college students feel about their social security system. Which of the following unbiased methods could the researcher use?

Select one or more:

The researcher places a poll question on the main university website and allow students to vote whether or not they like the system.

The researcher sets up a booth outside of the large classroom building and ask students to fill out a survey as they pass.

The researcher randomly selects 10 classes and succesfully asks all the students in those classes to fill out an anonymous survey.

The researcher places a survey in the campus paper which students could cut out and mail to the researcher.

The researcher takes a random sample from the enrollment list of the college and surveys the selected students.

1-    Explain why it is necessary and important to analyze the marketing environment

2-    For each actor/ force explained in the lecture (macro & micro) give a brief explanation, explain its important for marketers, find a real-life company example for each and explain in detail.

3-    Choose a product, how would you market it to different generations? Explain your strategies for each generational cohort and indicate why you chose that strategy.

3. The odds ratio will most closely approximate the risk ratio from which of the following hypothetical cohort studies that have the stated risks in the exposed and unexposed groups?

a. 1% risk of disease in the unexposed, 2% risk in the exposed b. 5% risk of disease in the unexposed, 10% risk in the exposed c. 10% risk of disease in the unexposed, 20% risk in the exposed d. 20% risk of disease in the unexposed, 40% risk in the exposed

Here are the projected numbers (in thousands) of earned degrees in a certain country during one academic year, classified by level and by the sex of the degree recipient:

Use these data to answer the following questions.

(a) What is the probability that a randomly chosen degree recipient is a man? (Round your answer to four decimal places.)


(b) What is the conditional probability that the person chosen received a bachelor's degree, given that he is a man? (Round your answer to four decimal places.)


(c) Use the multiplication rule to find the probability of choosing a male bachelor's degree recipient. Check your result by finding this probability directly from the table of counts. (Round your answer to four decimal places.)