Let’s say I want to see if four years of college can improve SAT scores. 5 randomly sampled high school freshman were asked to take the SAT and their scores were (1010, 1150, 1310, 1250, 980). After four years of college those same 5 students again took the SAT exam. Their scores after college were (1030, 1100, 1380, 1240, 1100). State the null and alternative hypotheses, find the test statistic, the rejection region, the p-value and state your conclusion.

An online quiz divides up people according to their usage of the computer. In a survey of 4,001 respondents, 8% were classified as "productivity enhancers" who are comfortable with technology and use the Internet for its practical value. Suppose you select a sample of 400 students at your school and the population proportion of productivity enhancers is 0.08.

a. What is the probability that in the sample, less than 10% of the students will be productivity enhancers ?

b. What is the probability that in the sample, between 6% and 10% of the students will be productivity enhancers ?

c. What is the probability that in the sample, more than 5% of the students will be productivity enhancers ?

FOR 2019 TAX

In 2019, Carson is claimed as a dependent on his parents' tax return. Carson's parents provided most of his support.

a. Carson is 17 years old at year-end and earned $14,600 from his summer job and part-time job after school. This was his only source of income.

b. Carson is 23 years old at year-end. He is a full-time student and earned $14,600 from his summer internship and part-time job. He also received $6,090 of qualified dividend income.

The dad of a preschool-age child is worried that his daughter is not getting enough calcium. He would like to know how low calcium intake could affect his daughter, current recommendations regarding calcium intake for his daughter, and good sources of calcium. As the school nurse what would you tell him?

List at least four recommendations to reduce early childhood dental carries.

How should complementary foods be introduced to infants? Do commercially prepared baby foods need to be a part of an infant’s diet, or are there other alternatives?

7. Two children in the same class took the same achievement test at the beginning and the end of the school year. The scores of this standard achievement test form a normal distribution. Both children improved on their scores. The score of Child A increased from the 47th to the 57th percentile while the score of Child B increased form the 87th to the 97th percentile.

a. Did both children make improvement of equal magnitude in terms of z scores? Circle one. (2 points)

YES NO
b. If “Yes”, why? If “No”, who made a greater improvement in z scores? (1 point)

What is your experience with stress management? If you have been to a CISD, did it seem to help or not? What do you think meditation, contemplation, and visualization can do for managing everyday psychological pressures and t-traumas? Do you believe that such practices build psychological resilience and provide tools useful for emergency responders facing critical incidents? Can you apply anxiety and stress management techniques to your school work – like test taking for example? Did you prefer the guided visualization over the talk-free bilateral sound? Why?

In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities.

It is estimated that 3.8% of the general population will live past their 90th birthday. In a graduating class of 721 high school seniors, find the following probabilities. (Round your answers to four decimal places.)

(a) 15 or more will live beyond their 90th birthday


(b) 30 or more will live beyond their 90th birthday


(c) between 25 and 35 will live beyond their 90th birthday


(d) more than 40 will live beyond their 90th birthday

A visiting American executive finds that a foreign subsidiary in a poor nation has hired a 12-year-old girl to work on a factory floor, in violation of the company's prohibition on child labor. He tells the local manager to replace the child and tell her to go back to school. The local manager tells the American executive that the child is an orphan with no other means of support. If denied work, she will probably become a street child along with her 6-year-old brother whom she supports. What should the American executive do? (in 250 words)

1. Paul Krugman is a: monetarist economist. real business cycle economist. rational expectations economist. supply-side economist. Keynesian economist.

2. The (original) Keynesian primary policy for a recession is: increasing money supply/decreasing interest rates. decreasing the money supply/increasing interest rates. increasing government spending/cutting taxes. increasing government spending/increasing money supply. increasing government spending/raising taxes.

3. The original classical school dominated macro economic thinking: 1800s to 1933. 1759-1793. 1997-2017. 1933-1980.