5- Recall the heuristics when applying the CLT tell us that when the s.pdf

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5. Recall the heuristics when applying the CLT tell us that when the sample size is n 30 the sample mean approximately follows the normal distribution. In this question you are asked to come up with counter-examples, i.e., examples that completely violate this rule of thumb. a. Construct a random variable (i.e., create a vector of values, as we did in class) where the population distribution is not normal, but that when n = 5 the sample mean is already very close to normal. b. Construct another random variable such that when you obtain random samples of size n = 2000, the distribution of the sample mean, .X 2000 , does not approximate at all the normal distribution. For both parts, use the function clt() to obtain graphs that justify your findings..

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3.2E Recently, the European Union made funds available to set-up a crossnational research database that stores information concerning scientific articles of researchers working at institutions in the EU. Science Connect is the company that will be setting up this database. The system will store information regarding scientific staff (persons) and research institutions. Both are uniquely identified by a person ID and an institution code, respectively. The following is also recorded for each person: a phone number, keywords that identify his/her key research topics and the institution he/she works for. A person can be an author of one article and a reviewer of another peer-reviewed article at the same time. The database will store the following information concerning scientific articles. Each scientific article is uniquely identified by a DOI (a document object identifier), and the system also stores the title and the authors of the article. In the case of multiple authors, the position of each author is stored. Science Connect distinguishes between two types of scientific articles: a scientific article is either a peer-reviewed paper or a technical report. The system stores the citation count of peer-reviewed papers and who reviewed the paper. A technical report is always published by a single research institution, while research institutions can of course publish multiple technical reports. The system keeps track of the different scientific publishers (e.g., IEEE, Elsevier). A publisher is identified by name. A publisher can publish multiple journals to which research institutions can subscribe. These journals are given a name by the publisher (e.g., Decision Support Systems). Publishers can have journals with the same name as other publishers; e.g., it is possible that both IEEE and Elsevier have a journal with the title Management Science. The impact factor, which measures the scientific impact of a journal, is also stored. Finally, only peer-reviewed papers are published in journals, not technical reports. Make an EER model and UML class diagram to model the data requirements. Comment on the limitations of both models..

3-2E Recently- the European Union made funds available to set-up a cro.pdf

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3- Which of the following structures can be found in a prokaryote- a-.pdf

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3-3 Give the Regular Expression for the language L recognized by the g.pdf

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3. Types of unemployment The three people described in the following table are categorized as unemployed by the Bureau of Labor Statistics. Identify each person in the table as structurally, frictionally, or cyclically unemployed. The following table presents date on frictional, cyclical, structural, and total unemployment for an economy. The following table presents data on frictional, cyclical, structural, and total unemployment for an economy. True or False: This economy is not currently at its natural rate of unemployment. True False.

3- Types of unemployment The three people described in the following t.pdf

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300 mb map - solid lines are isoheights in hundreds of meters, shading is the wind speed in knots (see legend) (from NOAA); e 1. Describe specific visual evidence (i.e., patterns in the contours, symbols and/or other information on the map) of ONE indicator that promotes mid-latitude cyclone development 2. Describe the relative location of this indicator with respect to the surface low-pressure center (annotated on the 500 mb map with an "L"). 3. Explain specifically how the presence of this indicator promotes mid-latitude cyclone development.

300 mb map - solid lines are isoheights in hundreds of meters- shading.pdf

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3. Your friend wonders whether hepatitis B is really a problematic disease. He says that the job of your immune system is to get rid of viruses and virus-infected cells. You tell him that hepatitis B causes an infection in which the causative agent remains in the body for years or even a lifetime, often without causing symptoms of disease. This type of infection is characterized by the continuous low-level production of viral particles and is called a(n) infection..

3- Your friend wonders whether hepatitis B is really a problematic dis.pdf

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3.17 LAB: Reverse a string Witie a reoursive thethod calked reversespmigel that takes in a sting as a parameter and fetums the string in feversed arder: The frain mettod is provided to read a string from the user and cal the revesse5trino0 method Ex. it the inputat ine program is the reverpettringe methed fefurs and the program oulputs Bavetse of "Minisot is "oliali" Ix if tre incus of the program is Mallat bertid? Labpiogramiava j publis clas taterere (postie atatic strite reverusterana(sering eyste).

3-17 LAB- Reverse a string Witie a reoursive thethod calked reversespm.pdf

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3.4E Attracted by the success of Spotify, a group of students wants to build its own music streaming website called Musicmatic. Being economists, they are unaware of the specificities of databases and have therefore asked you to create an EER model. A large number of songs will be made available through their website, and the following information on each song needs to be stored: title, year, length, and genre. Also, artist information will be added, including date of birth, name and a URL to a website (e.g., Wikipedia page) with additional information on the artist. You can assume an artist is uniquely identified by his/her name, and that a song always belongs to exactly one artist. The Musicmatic students also point out that songs having the same title are possible, and only the combination of song and artist can be assumed to be unique. The database will also have to store information on the people using Musicmatic. It was decided to only discriminate between two types of users: the regular users who will be able to buy music, and the business users who will deliver the content (upload the music). The following information is recorded on each user: (unique) ID, name, and address. Business users will also have a VAT number. The students want to offer a flexible service, and decided business users can only upload individual songs. These songs are classified either as singles or hits, and regular users can directly buy the singles. Otherwise, people can compose an album consisting of multiple hits (no singles). The position of each hit in the album is stored as a track number in the database. Note that the album of regular users can be turned into a suggestion to other regular users with similar purchasing behavior. Finally, a user can be a regular user on some occasions (e.g., when downloading a single or album), and a business user at other times (e.g., when uploading self-made songs to Musicmatic). Make an EER model and UML class diagram to model the data requirements. Comment on the limitations of both models..

3-4E Attracted by the success of Spotify- a group of students wants to.pdf

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5- If a plant with genotype AaBb is self-fertilized- the probability o.pdf

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5. In 1992, Louisiana offered a tax credit to film production companies to shoot their productions in the state. Since then, many states began to provide tax incentives to entice film and television companies to move their productions out of California and New York. You want to find out the economic impacts of state motion picture incentive programs. a) Develop one hypothesis, identify the X and Y variables (and their relationship), and two lurking variables (explain if they are spurious or confounding variables). b) Pick a research design and explain how do you collect and analyze the data. c) Identify the level of measurements for your X, Y and lurking variables. d) Identify two possible threats to the internal validity of your research design and explain how effectively your design may handle these threats..

5- In 1992- Louisiana offered a tax credit to film production companie.pdf

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5. Akinribade inc. needs to determine its year-end inventory. The warehouse contains 25,000 units, of which 3,500 were damaged by flood and are not seliable. Another 2,500 units were purchased from Bison Company, FOB shipping point, and are currenty in transit. The company atso consigns goods and has 4,500 units at a consignee's location. How many units should A. Akinribade Inc. Include in its year-end inventory?.

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