Q6. Essay: Medical School Admission---
Revisit Answer the following question in an argumentative essay. A medical school has received 300 applications from students who want to enrol. The school has the capacity to accept only 120 new students. All the 300 applicants have at least the minimum academic requirements. All have sent cheques for the $6,000.00 tuition fee. Since the number of applicants exceeded the number of slots, there is scarcity and a need to determine which applicants will be admitted and which will not. It is important to recognize that each of these allocation mechanisms, institutions, or governance alternatives will likely result in a different class composition, i.e., a different 120 students granted admission. Which allocation mechanism do you think is the best? Present your answer in the framework of economics (maximum of 200 words). Note: Unlike the last essay question (Assignment 1 Problem 5), your logic affects the grade for this essay question. This question asks you if you understand the economic concept we learned in this course. Make sure to proofread for typos and the like; obvious grammatical/spelling errors could lower your grade. To get a full credit, the following hint will help. Hint: Allocating school admission seats is different from allocating goods and services. The interesting issue is: which class is best from society’s perspective? That is actually a deeper or broader question that asks how we should allocate the talents of the 300 students, between using their time as doctors or in a next best alternative. Would it not be great if the allocation mechanism resulted in their first best choice for their time also being the first best choice for society? Is it possible that each student’s best choice might also be the best choice from society’s perspective? Could private interest and social interest be the same?
In: Economics
Question 1
A recent national survey found that high school students watched an average of 6.8 videos per month. A random sample of 36 high school students revealed that the mean number of vidoes watched last month was 6.2. From past experience it is known that the population standard deviation of the number of vidoes watched by high school students is 0.5. At the 0.05 level of signifiance, can we conclude that high school students are watching fewer vidoes?
(a) State the null and alternative hypotheses for this test.
(b) Compute the value of the Test Statistic?
(c) State the p-value for this test.
(d) State the conclusion for the test. Give reasons for your answer.
Question 2
From past records it is known that the average life of a battery used in a digital clock is 305 days. The lives of the batteries are normally distributed. The battery was recently modified to last longer. A sample of 40 modifed batteries was tested. It was discovered that the mean life was 311 days, and the sample standard deviation was 22 days. At the 0.01 level of sigificance, did the modofication increase the mean life of the battery?
(a) State the null and alternative hypotheses for this test.
(b) Compute the value of the Test Statistic?
(c) State the critical region for this test.
(d) State the conclusion for the test. Give reasons for your answer.
Question 3
A machine is set to produce no more than 0.07 defectives when properly adjusted. After the machine had been in operation for some time, a sample of one hundred pieces was tested. Twenty defectives pieces were observed. Is there evidence at the 5% level of significance that the machine needs readjustment?
(a) State the null and alternative hypotheses for this test.
(b) Compute the value of the Test Statistic?
(c) State the p-value for this test.
(d) State the conclusion for the test. Give reasons for your answer.
In: Statistics and Probability
In: Nursing
These are the scores of 40 students in MAT that took the Final Exam. Perform the computations asked below with this set of data:
|
88 |
91 |
50 |
65 |
46 |
99 |
72 |
82 |
66 |
75 |
|
70 |
58 |
86 |
83 |
68 |
82 |
59 |
98 |
64 |
82 |
|
99 |
58 |
20 |
63 |
64 |
39 |
81 |
89 |
96 |
101 |
|
83 |
56 |
93 |
84 |
70 |
22 |
105 |
81 |
102 |
77 |
1. What is the class mean of the test scores? Round to the nearest whole number.
2. What is the standard deviation (Sx) of the scores? Round to the nearest tenth.
3. What is the range of the scores?
4. What is the median?
5. What is the five number summary? Round each number to the nearest tenth.
6. The scores are roughly normally distributed. Calculate the interval that 68% of the data values fall between. Round to the nearest whole number.
Type answer as #1 to #2. Example: 65 to 76
7. Suppose a student got a 71 on the exam. Calculate a z-score, to two decimal places, for this student.
8. Describe the z-score according to its relationship to the mean (steps above/below).
Select one:
a. The z-score is .15 steps above the mean.
b. The z-score is .15 steps below the mean.
c. The z-score is 20.5 steps below the mean.
d. The z-score is 20.5 steps above the mean.
9. What percentile is the student in? Round to the nearest whole number.
10. What does the student percentile represent?
Select one:
a. The student earned a higher score than 44% of the other students in the class.
b. 44% of the students passed the exam.
c. 44% of the students earned a higher score than the student.
d. The student has a 44% chance of passing the exam.
In: Statistics and Probability
8. An SAT prep course claims to improve the test score of students. The table below shows the scores for seven students the first two times they took the verbal SAT. Before taking the SAT for the second time, each student took a course to try to improve his or her verbal SAT scores. Do these results support the claim that the SAT prep course improves the students' verbal SAT scores?
Let d=(verbal SAT scores prior to taking the prep course)−(verbal SAT scores after taking the prep course)d=(verbal SAT scores prior to taking the prep course)−(verbal SAT scores after taking the prep course). Use a significance level of α=0.01 for the test. Assume that the verbal SAT scores are normally distributed for the population of students both before and after taking the SAT prep course.
|
Student |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
|
Score on first SAT |
430 |
500 |
420 |
380 |
560 |
450 |
510 |
|
Score on second SAT |
480 |
570 |
480 |
420 |
580 |
530 |
530 |
Step 1 of 5: State the null and alternative hypotheses for the test.
Ho: μd (=,≠,<,>,≤,≥) 0
Ha: μd (=,≠,<,>,≤,≥) 0
Step 2 of 5: Find the value of the standard deviation of the paired differences. Round your answer to one decimal place.
Step 3 of 5: Compute the value of the test statistic. Round your answer to three decimal places.
Step 4 of 5: Determine the decision rule for rejecting the null hypothesis H0H0. Round the numerical portion of your answer to three decimal places.
Reject Ho if (t, I t I), (<,>) _____
Step 5 of 5: Make the decision for the hypothesis test.
Reject Null Hypothesis Fail to Reject Null Hypothesis
In: Statistics and Probability
5-Miranda missed the class period when her teacher introduced the steps for analyzing a speech. During class, students practiced the skill and got feedback from the teacher to help them perform the skill with competence. Now Miranda needs to teach herself and catch up with the rest of the class. This self-regulated learning will involve all of the following factors EXCEPT:
A.
motivation.
B.
volition.
C.
efficacy.
D.
knowledge.
6-Alan's art project is due tomorrow. He and all other fifth graders in his school have the opportunity to submit drawings, and one of them will be chosen as the yearbook cover. Alan loves to draw and wants his picture to be chosen. He knows his idea is good and that he has the drawing skills to submit one of the best drawings, but he keeps playing his video game. What is lacking in Alan's case?
A.
Volition
B.
Self-esteem
C.
Knowledge
D.
Motivation
7-A a few days ago, Mr. McKay worked with students to develop a rubric for assessing their projects in the historical fiction unit. The class has worked on the unit for more than a week, and students know the expectations for their projects. Today Mr. McKay paired students to work together and review their work using the rubric as a guide. This scenario is an example of:
A.
co-regulation.
B.
volition.
C.
high efficacy.
D.
shared regulation.
8-Various perspectives on learning are represented in the diverse views and theories that form the four pillars of teaching: behavioral, cognitive, constructivist, and social cognitive. Which perspective views the teacher's role as one of model, motivator, and facilitator of learning as well as the model of self-regulated learning?
A.
Behavioral
B.
Cognitive
C.
Social cognitive
D.
Constructivist
In: Psychology
Instructions: Write your responses to the following 5 questions for at least 5 of the 7 example news stories about correlational studies:
Example 5: Internet use in class leads to lower test scores
|
In: Statistics and Probability
Cognitive science consistently shows that one of the most effective studying tools is to self-test. A recent study reinforced this finding. In the study, 118 college students studied 48 pairs of Swahili and English words. All students had an initial study time and then three blocks of practice time. During the practice time, half the students studied the words by reading them side by side, while the other half gave themselves quizzes in which they were shown one word and had to recall its partner. Students were randomly assigned to the two groups, and total practice time was the same for both groups. On the final test one week later, the proportion of items correctly recalled was 15% for the reading-study group and 42% for the self-quiz group. The standard error for the difference in proportions is about 0.07. Test whether giving self-quizzes is more effective and show all details of the test. The sample size is large enough to use the normal distribution. Remember – there are four steps for the hypothesis test: Hypotheses with explanation of what the parameter represents, Find the Test statistic, Find the P-value, Give the Conclusions, including the justification, conclusion about the null and conclusion in context of the problem.
2. We have the following two-way table showing the servers and whether or not the customer used a credit card to pay for their meal. TABLE A B C Yes 21 15 15 No 39 50 17In: Statistics and Probability
Administrators want to know if test anxiety is impacted by the
number of college years completed. After completing their freshman
year, a random sample of students was selected and given the
College Test Anxiety Questionnaire (CTAQ); higher scores indicate
more test anxiety. After completing their junior year they were
again tested. What can the administrators conclude with α =
0.05?
| freshman | junior |
|---|---|
| 2.1 7.5 3.2 6.3 5.5 5.2 4.6 5.2 |
5.9 7.2 7.4 6.8 8.5 6.2 7.3 5.2 |
a) What is the appropriate test statistic?
---Select--- na OR z-test OR
One-Sample t-test OR Independent-Samples t-test
OR Related-Samples t-test
b)
Condition 1:
---Select--- junior OR CTAQ OR
test anxiety OR number of college years
OR freshman
Condition 2:
---Select---junior OR CTAQ OR
test anxiety OR number of college years
OR freshman
c) Input the appropriate value(s) to make a
decision about H0.
(Hint: Make sure to write down the null and alternative hypotheses
to help solve the problem.)
p-value = _____ ; Decision: ---Select--- Reject
H0 OR Fail to reject H0
d) Using the SPSS results,
compute the corresponding effect size(s) and indicate
magnitude(s).
If not appropriate, input and/or select "na" below.
d = _____ ; ---Select--- na
OR trivial effect OR small effect
OR medium effect OR large
effect
r2 = _____ ; ---Select--- na
OR trivial effect OR small effect
OR medium effect OR large
effect
e) Make an interpretation based on the
results.
A) Students showed significantly less anxiety in their junior year as opposed to their freshman year.
B) Students showed significantly more anxiety in their junior year as opposed to their freshman year.
C) Students showed no significant anxiety difference between their junior and freshman year.
In: Statistics and Probability
1. You manage an ice cream factory that makes two flavors: Creamy Vanilla and Continental Mocha. Into each quart of Creamy Vanilla go 2 eggs and 3 cups of cream. Into each quart of Continental Mocha go 1 egg and 3 cups of cream. You have in stock 850 eggs and 1,650 cups of cream. How many quarts of each flavor should you make in order to use up all the eggs and cream?
2. Enormous State University's Math Department offers two courses: Finite Math and Applied Calculus. Each section of Finite Math has 80 students, and each section of Applied Calculus has 70 students. The department will offer a total of 150 sections in a semester, and 11,200 students would like to take a math course. How many sections of each course should the department offer in order to fill all sections and accommodate all of the students?
3
Gerber Product's Gerber Mixed Cereal for Baby contains, in each serving, 60 calories and 11 grams of carbohydrates.† Gerber Mango Tropical Fruit Dessert contains, in each serving, 80 calories and 21 grams of carbohydrates.† If you want to provide your child with 300 calories and 74 grams of carbohydrates, how many servings of each should you use?
4.
You are the buyer for OHaganBooks.com and are considering increasing stocks of romance and horror novels at the new OHaganBooks.com warehouse in Texas. You have offers from two publishers: Duffin House and Higgins Press. Duffin offers a package of 5 horror novels and 5 romance novels for $50, and Higgins offers a package of 5 horror and 11 romance novels for $150.
How many packages should you purchase from each publisher to get exactly 7,500 horror novels and 10,800 romance novels?
In: Accounting