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)

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?

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? ___________________

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

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.).

Suppose that the price of basketball tickets at your college is determined by market forces. Currently, the demand and supply schedules are as follows:

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:

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.

Puzzle #1 A kindergarten teacher knows that exactly one of four students, Kathy, Andy, Jose, or Dana, took Amy’s cookie. When asked about who did it, Kathy said: “Andy did it.”, Andy said: “Dana did it.”, Jose said: “I didn’t do it.”, and Dana said: “Andy lied when he said I did it.” 1. If the teacher knows that exactly one of the students is telling the truth, who did it? Explain.

2. If the teacher knows that exactly one of the students is lying, who did it? Explain. Puzzle #2 There are three neighbors living in a row. Each house has a different color and a different animal and person living in/at the house. Each person has a different profession. The horse lives in the first house. The doctor is Jamal’s neighbor. Jamal does not have a ferret as a neighbor. Carlos does not live in the blue house and Jamal does not live in the green house. Ann is a lawyer and lives in the 3rd house. The professor has the horse as a neighbor. The mouse does not live in the red house. The lawyer does not live in the blue house. 1. Determine the color of the house the horse lives in. This project will be scored out of 10 points in the following way:

In a study of government financial aid for college​ students, it becomes necessary to estimate the percentage of​ full-time college students who earn a​ bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.03 margin of error and use a confidence level of 95​%.

Complete parts​ (a) through​ (c) below. a. Assume that nothing is known about the percentage to be estimated. nequals nothing ​(Round up to the nearest​ integer.) b. Assume prior studies have shown that about 45​% of​ full-time students earn​ bachelor's degrees in four years or less. nequals nothing ​(Round up to the nearest​ integer.) c. Does the added knowledge in part​ (b) have much of an effect on the sample​ size? A. ​Yes, using the additional survey information from part​ (b) only slightly increases the sample size. B. ​No, using the additional survey information from part​ (b) does not change the sample size. C. ​Yes, using the additional survey information from part​ (b) dramatically reduces the sample size. D. ​No, using the additional survey information from part​ (b) only slightly reduces the sample size.

Consider the following fictional examples of correlations found in research. In each example, the researcher explains the correlation by inferring causality. For each example, please provide at least two other possible explanations as to why the relationship exists. Consider the reverse causality or other external variables in your explanation. Think critically and creatively!

1) A researcher finds that there is positive correlation between watching violence on T.V. and violent behavior in adolescence. He stipulates that watching violence on T.V. causes violent behavior in adolescents.

2) A research study determines that there is a negative correlation between GPA and number of sexual partners among college students. The researchers explain that studying more/having a higher GPA cause college students to be less sexually active.

3) A professor in a nursing program finds that students who choose to spend more of their rotation hours in an oncology ward rate higher on a scale that measures level of compassion. He postulates that training in an oncology ward causes increases in compassion levels.

4) A political science researcher finds that there is a negative correlation between level of education and amount of donation to political campaigns. She determines that getting a higher education causes decreased desire to donate to political campaigns.

For each question please state your null and alternative hypothesis, your p-value and conclusion of your hypothesis test. You may use your calculator to perform the hypothesis.

1. Research conducted a few years ago showed that 35% of UCLA students had travelled outside the US. UCLA has recently implemented a new study abroad program and results of a new survey show that out of the 100 randomly sampled students 40 have travelled abroad. Is there significant evidence to suggest that the proportion of students at UCLA who have travelled abroad has increased after the implementation of the study abroad program? Use a .01 significance level.

   2. Sleep experts believe that sleep apnea is more likely to occur in men than in the general population. In other words, they claim the percentage of men who suffer from sleep apnea is greater than 5.8%. To test this claim, one sleep expert examines a simple random sample of 90 men and determines 9 of these men suffer from sleep apnea. Does this evidence support the claim that the percentage of men who suffer from sleep apnea not longer equals 5.8%? Use a 0.05 level of significance.