4. To illustrate the effects of driving under the influence (DUI) of alcohol, a police officer brought a DUI simulator to a local high school. Student reaction time in an emergency was measured with unimpaired vision and also while wearing a pair of special goggles to simulate the effects of alcohol on vision. For a random sample of nine teenagers, the time (in seconds) required to bring the vehicle to a stop from a speed of 60 miles per hour was recorded.

Test the claim that there is a no difference in braking time with impaired vision and normal vision at the 0.05 level of significance

(a) Farmer Sherry can grow wheat and barley. She can grow 75 bushels of wheat
or 125 bushels of barley on a hectare of her land for the same cost. The price of wheat is $2 per bushel
and the price of barley is $0.80 per kilogram. Show the benefits to Sherry of specialization. What should
she specialize in? Why ? (2)
(b) You work at your school, making $15 per hour. Yesterday, you decided to cancel your two-
hour tutoring appointment in order to meet friends for a coffee. The coffee cost you $3.50. What was the
opportunity cost of this decision in dollars? Explain your solution! (2)
(c) Give two examples of each of the following: (4)
(i) Positive economic statement, (ii) Normative statement (iii) Micro Economics (iv) Macro Economics

Indicate whether the following research sampling methods are convenience samples or random samples: I select 150 students from my local university for a study on stress among college students. I randomly assign 25 persons from my place of work to a control group and 25 to an experimental group for a study on workplace satisfaction. Using a random number generator, I select a minimum sample size study population of male U.S. citizens with a passport from a passport database obtained from the U.S. State Department. I survey all certified public high school teachers in the city of Chicago, Illinois. I administer a rapid HIV antibody test to the first 50 consenting adults older than age 18 who stop by my booth at the health fair.

Rebecca has built a very profitable business, and she credits the entrepreneurship program at her alma mater for a lot of her success. She would like to donate money to her old school to help one worthy graduate each year establish his or her own business. She will donate the money today, with the understanding that the first award will go to a graduate of this yearʹs junior class. (That is, the first award will be made two years from now.) Her alma mater is able to invest the funds at a constant, annual, tax -free rate of 5%. How much must her donation need be if she would like for the annual award to be $150000 a year and wants the program to continue forever, even after she is no longer around? Round up your answer to the nearest thousand dollar.

The table below gives the pretest and posttest scores on the listening test in Spanish for 20 high school Spanish teachers who attended an intensive summer course in Spanish

Pretest 30 28 31 26 20 30 34 15 28 20 30 29 31 29 34 20 26 25 31 29

Posttest 29 30 32 30 16 25 31 18 33 25 32 28 34 32 32 27 28 29 32 32

a. At 5% significance level, test the hypothesis that attending an intensive summer course improves listening skills in Spanish.

b. Find a 90% confidence interval for the mean increase in listening score due to attending an intensive summer course in Spanish.

Assume a household of 2 adults working at full time jobs paying minimum wage, with 2 elementary school age children. Please create a monthly budget for this family and explain each budget line item. Remember to take 15% off their gross earning for taxes. Explain some of the challenges this family will face. Here we are with around 4% unemployment rate or less. Why are so many people living in poverty in America? Where are they located geographically? What about the racial and gender disparities? A bit of Google research should provide additional information. Explain 5 things that need to be done to significantly reduce the number of people in poverty going forward. Should be able to create some good ideas

Please be very descriptive!

The patient had pain several weeks ago after his tennis team went to a regional competition. When he rests, the pain seems to go away. The pain is alleviated when he takes Naprosyn. No history of trauma or infection in the elbow. Past medical and social history non contributary. He's a junior at the local high school and just started taking tennis lessons 2 months ago and his coach is working with him on his backhand serve. Focused physical exam revealed point tenderness over the lateral epicondyle which increases with pronation and supination. The APRN diagnoses him with lateral epicondylitis and orders a wrist splint to prevent wrist flexion. Question: Why did the APRN feel a wrist splint would be helpful? What patient characteristics lead to this diagnosis.

Identify the accrued income, prepaid income, expenditure and calculate the taxable income for Murray. He operates a fitness school and use accrual basis accounting for his business. He provides the following information (all amounts are exclusive of GST) for the year of 2013/14: (PC - 1.6) Murray had the receipts: • Cash takings from casual lessons $18,000 • Receipts from regular customers $288,000 (All bookings are received in advance of the actual lessons) He had the following account balance: • Income received in advance as at 1 July 2013 $22,000 • Income received in advance as at 30 June 2014 $28,000 He also incurred the payments on 1 January 2014: • For the following 12 months rent of the business premises $40,000 • For the following 12 months lease of the business equipment $46,000

A hypothesis test was conducted to compare the mean SAT-Verbal score of a sample of 10 students from one school to the known national norms. In the sample of 10 students, the mean was 555. In the population, SAT-Verbal scores are normed to have a mean of 500 and standard deviation of 100. The two-tailed single sample mean z test resulted in a test statistic of 1.739 and p value of 0.082. At the 0.05 alpha level, the results were not statistically significant.

A. There are five ways to increase statistical power. In this specific scenario, what are three changesthe researchers could realistically make to increase statistical power.

B. Of the three changes that the researchers could make, which one would you recommend? Explain why you think this is the best option.