The mean height of a random sample of 47 students who take part in athletic activities at NRDC is 175cm with a standard deviation of 5cm while a random sample of 132 students who showed no interest in athletics had a mean of 170cm and a standard deviation of 7cm.

(a) Construct a 99% confidence interval for the difference in the mean heights of the two groups of students.

(b) Are students who take part in athletic activities taller? Test at the 1% level of significance.

     The mean height of a random sample of 47 students who take part in athletic activities at a school is 175cm with a standard deviation of 5cm while a random sample of 132 students who showed no interest in athletics had a mean of 170cm and a standard deviation of 7cm.

(a) Construct a 99% confidence interval for the difference in the mean heights of the two groups of students.

(b) Are students who take part in athletic activities taller? Test at the 1% level of significance.

Susan is beginning to plan college savings accounts for her two children. Her son Bobby is 8 and will begin college in 10 years when he turns 18. Her daughter Mallory is 2 and will begin college in 16 years when she is 18. Susan plans to deposit $10,000 per year starting next year into a joint account that earns 8.0% annually. Her last deposit will occur in the year that Bobby starts school. If Bobby’s schooling costs $25,000 each year for four years, and Mallory’s schooling costs $30,000 each year for four years, will Susan’s plan provide enough money for both her children’s college education? By how much will Susan meet/miss the goal when she quits depositing money in year 10? (Assume schooling costs are paid after the year is completed, i.e. Bobby’s first tuition payment will occur at end of year 11)

An 8-year male is brought to the Emergency Department for a temperature of 105 F and extreme lethargy. The child complains of a sore throat, severe headache, and severe body aches. The parents state the child went to bed in a healthy condition but woke during the night with a temperature of 102. The child has no other significant medical history. The parents do not believe in vaccinations and home school their children. They have one other child at home who has asthma. The patient is diagnosed with influenza and the plan is to admit to the pediatric intensive care unit. The nurse returns to the patient to prepare for transfer to PICU and hears the UAP telling the parents they are smart not to vaccinate their children because it caused his son to have autism.

Craft an initial post that addresses:

1. What ethical dilemma does the nurse face and what interventions should the nurse take to address the issue(s)?  
2. Provide a detailed education plan for the rationale for vaccinations and the management of influenza.

A researcher wishes to examine the relationship between wage earned and educational level of workers. For a sample of 4000 workers she has data on hourly earnings (measured in SAR), age of the worker (in years), worker’s gender, years of experience, number of years with the present employer, size of the firm in which the worker is employed, and highest educational qualification (with 4 classifications: no qualification, secondary school certificate, bachelor degree or PhD)

1. Explain how you would set up a model to address the researcher’s key interest.
2. Based on your model, how would you estimate the predicted impact on wages of holding a PhD compared to having a bachelor’s degree.
3. If the researcher uses ln(wage) as the dependent variable, how would the estimated coefficients be interpreted?
4. What general advice would you give the researcher in relation to her work – eg. what econometric issues should she be aware of in conducting this research and interpreting the results?

Think back to your experience in grades 1-6 and using the theories of Erikson, Piaget, Vygotsky, Bandura, and Kohlberg answer the following questions:: How would you describe your social competence as a young child? Did it change over middle childhood? Were you a high or a low status child then? Did you play predominantly with high or low status children? Were you popular? Think of a popular child in your school and an unpopular child (first names only). Describe the popular child. Make sure you consider the characteristics that contributed to this child's popularity. How do these characteristics compare with popular child characteristics you read about in your text? Describe the unpopular child. Make sure you consider the characteristics that contributed to this child's unpopular status. How do this child's characteristics compare with unpopular child characteristics you read about in your text?

. In the lecture notes about higher education, there’s an example showing the net present value of getting a bachelors degree. This includes a box with some text that goes something like this, “Is This Poor Analysis a Result of the Instructors Laziness or His Ignorance? For a fun, in-class exercise, how many problems can you identify with the analysis presented above? There are at least two that I know of, excluding the issues presented below.” A. For the student in question, there is an important cost of attending college that is not included in the calculations, although it is mentioned in the lecture notes. As a hint, the usual assumption is that a student who finishes in four years is going to school full time and not engaged in other things. B. The cost of room and board is included as a cost of attending college. Should it be? C. Oh, yeah, what is the marginal cost of having one more student in a class? Should the analysis of attending college be based on the average cost or the marginal cost of college attendance?

Students’ interactions with universities create large amounts of data. The data is generated in several main areas. Firstly, students provide data as part of their application and enrolment process, including entrance and demographic data. Secondly, students’ interactions with the school website generate data, and thirdly, students’ performance data is collected in the student information system. Universities can use this data in many ways by combining and aggregating the data from these difference sources and analysing it for patterns, trends and causal relationships between certain behaviours and outcomes.
Note: (For this, you will have to google "Learning Analytics" if you don't specifically know what it is.)

Q1. Discuss the benefits that could arise to students from Learning Analytics.

Q2. Discuss the benefits that could arise to a university from Learning Analytics.

Q3. Describe some possible negative outcomes for students from Learning Analytics.

Q4. Do you think the collection and analysis of student-relating data is ethical?

The city of Kansas City establishes a delivery truck that provides service to other departments, all of which are accounted for in its general fund. During its first year of operations the shop engages in the following transactions:

It purchases equipment at a cost of $50 million and issues long-term notes for the purchase price. The useful life of the equipment is eight years, with no residual value.

It purchases supplies at a cost of $8 million. Of these it uses $3 million. In its governmental funds, the district accounts for supplies on a purchases basis.

It incurs $15 million in other operating costs.

It bills other departments for $25 million.

For purposes of external reporting, school district officials are considering two options:

-Account for the vehicle repair shop in an internal service fund

-Account for the vehicle repair shop in the general fund

1. Record the transactions for the print shop assuming (1) the city selected the first option (2) the city selected the second option.

Your daughter just turned 4 years old. You anticipate she will start University when she turns 18. You would like to have funds in a registered education savings plan (RESP) to fund her education at that time. You anticipate she will spend 6 years in university, and it will cost $20,000 per year. She will need the $20,000 at the start of each school year. When she graduates (debt free) you would also like her to have $40,000 for a down payment on a condo or to travel. If the account promises to pay a fixed interest rate (APR) of 6% per year with monthly compounding, how much money do you have to deposit each quarter to ensure you will have enough when she starts university? Assume you will make the same deposit at the end of each quarter until she starts university.

1. A researcher wishes to examine the relationship between wage earned and educational level of workers. For a sample of 4000 workers she has data on hourly earnings (measured in SAR), age of the worker (in years), worker’s gender, years of experience, number of years with the present employer, size of the firm in which the worker is employed, and highest educational qualification (with 4 classifications: no qualification, secondary school certificate, bachelor degree or PhD)

1. Explain how you would set up a model to address the researcher’s key interest.
2. Based on your model, how would you estimate the predicted impact on wages of holding a PhD compared to having a bachelor’s degree.
3. If the researcher uses ln(wage) as the dependent variable, how would the estimated coefficients be interpreted?
4. What general advice would you give the researcher in relation to her work – eg. what econometric issues should she be aware of in conducting this research and interpreting the results?