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Statistics and Probability Question

 3.A researcher wonders if students will spend more time studying for a quiz if they are told that a high mark on that quiz will excuse them from writing a term paper. Two groups of college students were randomly selected from a large lecture course in art history. The students in Group 1 were simply told that they would have their first art-history quiz two days later. In Group 2, they were told the same thing, except that the promise of “no term paper” for high quiz performance was added. Just before taking the quiz, all students in both groups reported (in hours) the time they had spent preparing. In Group 1, the times were 6, 4, 7, 3, 2, 5, 7, 4, 7, 6. In Group 2 the times were 12, 9, 13, 10, 8, 7, 9, 6, 9, 6.
4. What is the IV?
5. What is the DV?
6. Calculate the means for each group
7. Calculate the standard deviations for each group
8. Calculate the standard errors of the means for each group
9. Calculate the SED for both groups combined
10. Calculate the independent t ratio 11. Is this a one-tail or two-tail hypothesis?
12. Do you reject or accept the null hypothesis?
13. Is the effect size small, medium, strong, or insignificant?
14. Are the two groups homoscedastic? 15. Based on your answer to #
15, what does that mean with regard to the two samples in problem # 4?
16. What test of significance is used to determine equality of variances between the two groups?
17. Write a sentence interpreting the outcome of the analysis.
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ECONOMICS

Use the text and the information you get from the Internet to complete this group-assignment. Attach at least three of your internet search printout behind your typed paper (Double space; 12 point Times New Roman font with I inch margin all around, APA-American Psychological Association or MLA-Modem Language Association style). The organization of the term paper should reveal professionalism. Your printout must support the information in your paper. The length of the paper should not exceed 10 pages without attachments appendix. In your write-up/discussion, try to relate as many concepts as possible that you have learnt in this course considering the modem age of globalization with differential culture, ethical values, and political, economic and legal systems. Correct grammar and spelling are important consideration. All the references and websites visited should be clearly mentioned in the Reference List for verification if necessary. International trade data/information can be collected from United Nations and/or any other governmental sources such as Department of Commerce visiting their websites. United Nations Statistics Division- Commodity Trade Statistics Database (COMTRADL) website is: http://comtrade.un.org/db/

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Business Law: In which of the following situations would a court likely hold Ursula liable for copyright infringement?

In which of the following situations would a court likely hold Ursula liable for copyright infringement?

(a) Ursula goes to the library and photocopies ten pages from a scholarly journal relating to a topic on which she is writing a term paper.

(b) Ursula makes blouses, dresses, and other clothes and sells them in her small shop. She advertises some of the outfits as Guest items, hoping that customers might mistakenly assume that they were made by Guess, the well-known clothing manufacturer.

(c) Ursula teaches Latin American history at a small university. She has a DVR (digital video recorder) and frequently records television programs relating to Latin America. She then copies the programs to a DVD and brings them to her classroom so that her students can watch them.

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Concert Attendance Report.

Concert Attendance Report.
Required to attend a live, orchestra concert near the end of this course and submit a detailed Concert Report. Pay particular attention to the paragraph that describes the format for a printed report.
You are to write a 3-page term paper giving a review of the concert you attended. The report should be in essay form, 12-font, single-spaced. Please be sure to cover every piece on the program.
• What kind of listeners were at the concert? Why?
• What pieces were performed?
• What was the style of each of the pieces performed?
• What was the instrumentation of the orchestra?
• Draw out the seating arrangement of the instruments in the orchestra.
Analyze each piece played in the concert with following criteria from the course:
• Unity and Variety
• Structure of the Music
• Purpose of the Music
• Tempo
• Volume
• Rhythm
• Melody
• Harmony
• Form
• Historical Period

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The Concept of Community

Discuss the concept of community of practice and provide a list of c. of p. to which the group members belong, with details on activities, values, goals, as well as how people become involved in them.

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Probability and Statistics

1. In the 2012 Presidential election, Florida was one of the swing states in which no single candidate or party had overwhelming support. In a poll completed November 1, just one week before the election, the Tampa Bay Times found 51% in favor of Romney, 45% in favor of Obama and 4% undecided. On November 3rd, the opening line in the article of the Tampa Bay Times that reported the results of this poll sais “Florida continues to look good for Mitt Romney.” The poll was based on a sample of 800 likely voters. On election day, Romney received 49.1% of the votes in Florida and lost the state. What happened?
a) For each of the boldface numbers, indicate whether it is a parameter or a statistic. Explain your answer.
b) Suppose 49.1% of all voters supported Mitt Romney at the time of the poll. What are the mean and the standard deviation of p^ (pHat), the proportion of voters in a SRS of 800 voters who would support Romney?
c) Suppose 49.1% of all voters supported Mitt Romney at the time of the poll. What is the probability that at least 51% of the voters in an SRS of 800 voters would support Romney?

2. Greeks bucked a global trend in which people in most countries except their lives in five years to be better than their current lives. Even among those countries with much lower current life ratings, greater than optimism was found because people cannot fathom their lives getting worse. But in Greece, only 25% expect their lives to be better in 5 years than currently. In an SRS of 500 greek citizens, what is the probability that less than 30% of the sample expect their lives in 5 years to be better than their current lives?

3. Approximately 20% of cars in the US are white. You take an SRS of 300 cars parked in student lots on your campus and find 42 are white. For this problem, you can assume that you have obtained an SRS of student cars on campus.
a) what is the proportion, p^, of white cars in your sample?
b) If 20% of student cars on campus are white, what proportion of samples wpuld give a value of p^ as small as the value computed in (a)?
c) There are two explanations for your sample result. The first is that you obtained a sample with an unusually low percentage of white cars. What is an alternative explanation?

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In an SRS of 500 Greek citizens, what is the probability that less than 30% of the sample expect their lives in 5 years to be better than their current lives?

Greeks bucked a global trend in which people in most countries except their lives in five years to be better than their current lives. Even among those countries with much lower current life ratings, greater than optimism was found because people cannot fathom their lives getting worse. But in Greece, only 25% expect their lives to be better in 5 years than currently. In an SRS of 500 Greek citizens, what is the probability that less than 30% of the sample expect their lives in 5 years to be better than their current lives?

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Current Internet Services and Applications

People should be wary of becoming too attached to Internet functionality or particular applications since these are continually being refined in response to Web trends. (Think of how frequently iTunes upgrades, for example.) In this assignment, you will look at current Internet services and applications and try to forecast how trends may affect them in the years to come. Please respond to all of the following prompts:
In your opinion, what are the two most useful Internet services? Explain.
In your opinion, what are the two most useful Web applications? Explain.
Select two Web 2.0, 3.0, or Internet2 trends to compare. How has each changed typical Internet usage? Which do you think will have more staying power and why?

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Future Technology Trends.

Like many executives, your boss is too busy to shift through all the articles describing current technology trends and predictions for the future. She has assigned the task to you. She asks you to search for articles about future technology trends and write a summary of two of the best articles you found. Your task: Write an article summary in INFORMAL MEMO PROPOSAL to (given name) that addresses two articles on future technology trends. include an introduction, such as you requested, I am submitting two articles summaries…Identify the author, article title, journal or website name, and date of publication for each article. Explain the purpose of each article and summarize three or four of its most important findings. Include an appropriate subject line and add meaningful heads. Your boss would also like a concluding statement indicating your overall reaction to the articles.