Decisions about alpha level may be different, especially as it relates from hard sciences to social sciences. For example, a medical trial for cancer treatments conducts their statistical tests at .0001 – so for every 1 out of 10,000 patients, there may be issues, sickness or even death. For social science, we use alpha .05. We are comfortable with performing research, for example, on students. So we are satisfied with losing 5 out of 100 students or having our results being incorrect 5 out of 100 times. Do you agree with these alpha levels? Why or why not? What if your child’s education and the teacher assigned to him/her would be successful 95 out of 100 times?
In: Math
You conducted a study on the relationship between alcohol consumption and depression among college students in which you distributed a survey to 300 college seniors. Students who completed the survey responded to a standardized questionnaire measuring depression symptoms and to a series of questions about their typical alcohol consumption patterns. The results of your study indicated that the correlation between depression and alcohol consumption was +.34.
Explain what this correlation means in terms of direction and strength.
One possible explanation for this relationship is that depression causes people to drink more. What are two other possible explanations for this correlation? What are they?
This study was a descriptive/correlational study. Explain to me why you would NOT use an experimental study to examine these two variables.
In: Psychology
About Desire2Learn:
It is the developer of the Brightspace learning management system which cloud-based software used by schools, higher education, and businesses for online and blended classroom learning. D2L is also the developer of Open Courses a Massive Open Online Course platform. The Desire2Learn course management system, often known as D2L, is used to deliver learning resources to students, including syllabi, course content and other documents, and multimedia content. Students also use Desire2Learn to submit assignments, take tests and quizzes, and collaborate with instructors and classmates.
1- As a professional trainer, what is your opinion of the Desire2Learn learning system? Explain. Be sure to focus on the specific features of Desire2Learn, not aspects of online learning in general in your response.
In: Operations Management
In: Finance
Assignment 1:
It is known that achievement test scores of all high school seniors in a state (in the US) have mean 60 and variance 64. On a large high school, located in a low socio economic area, a small group of senior students set out to investigate the performance of their own school. They collected a random sample of ??=100 achievement test scores from fellow students. Analyzing the results, it was found that the sample mean achievement test score was 58.
A) Is there evidence to suggest that this high school is performing poorly? Look at the hint below and provide an explanation.
(Hint: find the probability that the sample mean achievement test score is at most 58, assuming that the true mean score is 60. In the computation, use ? = 8)
In: Math
The professors who teach the Introduction to Psychology course at State University pride themselves on the normal distributions of exam scores. After the first exam, the current professor reports to the class that the mean for the exam was 73, with a standard deviation of 7.
a. What proportion of student would be expected to score above 80?
b What proportion of students would be expected to score between 55 and 75?
c. What proportion of students would be expected to score less than 65?
d. If the top 10% of the class receive an A for the exam, what score would be required for a student to receive an A?
e. If the bottom 10% of the class fail the exam, what score would earn a student a failing grade?
In: Math
Spartan Spaces creates room set-ups for college dorms.
Spartan Spaces purchases
Bedding for room set-ups from companies in the US for $8,000;
wall shelving for room set-ups from companies in China for $2,300;
equipment for packaging the set-ups to mail from a Chicago company for $1,000
Spartan Spaces sells
50 room set-ups to students at MSU for $100 per room;
50 room set-ups to students at Western Ontario University for $120 per room.
a.How much does each component of US GDP change?
US Consumption_______________
US Investment________________
US Government purchases____________
US Net Exports ____________________
b. What is the change in GDP? ___________________
In: Economics
Gorovitz’s main thesis is that medical education ought to focus more on ethical issues in the course of teaching students the technical skills and knowledge necessary for becoming physicians. What reasons and examples does he provide in support of this view, and how would you evaluate the importance of this view for another profession?
Should:
Present Gorovitz’s thesis that medical education ought to focus more on ethical issues in the course of teaching students the technical skills and knowledge necessary for becoming physicians.
Clearly and correctly identify Gorovitz’s reasons and examples in support of this thesis.
Present a comparison to the need for increased ethical awareness in another profession (such as the law, education, counseling, consulting, etc.
This is a lenghtly assignment and should include many details
In: Psychology
Create an ER diagram, a Relational Schema, and tables with Data, based on the following requirements:
The database will keep track of students and campus organizations.
- For each student, we will keep track of his or her unique student ID, and his or her name and gender.
- For each organization, we will keep track of its unique organization ID and the location.
- Each student in the database belongs to at least one organization and can belong to multiple organizations.
- Each organization in the database has at least one student belonging to it and can have multiple students.
- For every instance of a student belonging to an organization, we will record the student's function in the organization (e.g., president, vice president, treasurer, member, etc.).
In: Computer Science
Suppose that the price of basketball tickets at your college is determined by market forces. Currently, the demand and supply schedules are as follows:
|
Price |
Quantity Demanded |
Quantity Supplied |
|---|---|---|
|
(Dollars) |
(Tickets) |
(Tickets) |
| 4 | 10,000 | 8,000 |
| 8 | 8,000 | 8,000 |
| 12 | 6,000 | 8,000 |
| 16 | 4,000 | 8,000 |
| 20 | 2,000 | 8,000 |
Use the blue points (circle symbol) to graph the demand for basketball tickets. Then use the orange points (square symbol) to graph the supply of tickets. Finally, use the black point (plus symbol) to indicate the equilibrium price and quantity in this market.
Original DemandSupplyOriginal EquilibriumNew DemandNew Equilibrium0246810121416182020181614121086420Price of Tickets (Dollars)Quantity of Tickets (Thousands)20, 4
Your college plans to increase total enrollment next year by 5,000 students. The additional students will have the following demand schedule:
|
Price |
Quantity Demanded |
|---|---|
|
(Dollars) |
(Tickets) |
| 4 | 4,000 |
| 8 | 3,000 |
| 12 | 2,000 |
| 16 | 1,000 |
| 20 | 0 |
Add the old demand schedule and the demand schedule for the new students to calculate the new demand schedule for the entire college. Use the purple points (diamond symbol) to draw this new demand curve on the previous graph. Then use the grey point (star symbol) to indicate the new equilibrium price and quantity.
In: Economics