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2. A researcher has reason to believe that, for an experiment with 50 points, a 95% prediction interval would be of width 8. If the researcher wishes to run a more precise experiment that will result in a 95% prediction interval of width 4, then the researcher will require how many points? Solution 200.

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2. A study by the Information Technology department at WPU revealed company employees receive an average of four e-mails per hour. Assume the arrival of these e-mails is approximated by the Poisson distribution. (a) What is the probability, Prof. Smith, received exactly one e-mail between 4pm and 5pm yesterday? (b) What is the probability he did not receive any e-mail during this period? (c) What is the probability he received ten or more e-mails during the same period? Show all steps of work. Solution Our Distribution is : mu = 4 P(x=1) = e^(-4)*(4)^x/x! (a) P(x=1) == e^(-4)*(4)^1/1! = 0.073263 (b) P(x=0) == e^(-4)*(4)^0/0! = 0.01832 (c) P(X>=10) = 1- P(x=0)-P(x=1)-P(x=2)-P(x=3)-P(x=4)-P(x=5)-P(x=6)-P(x=7)-P(x=8)-P(x=9) =0.008132243.

2. A study by the Information Technology department at WPU revealed .pdf

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2. Describe what is measured by the estimated standard error in the .pdf

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2. a- What is a \"Junk Bond\" b- What is a debenture? Solution a) Junk Bonds: They are fixes income instuments that carry a rating of \"BB\" or lower by standard and poor\'s, or\"BA\" or below by Moody\'s. Junk bonds have higher default risk in relation to investment grade bonds. they are risky investments but have speculatib\\ve appeals because they offer much higher yields than safer bonds. b) Debenture : It is a type of debt instruments that is not secured by physical asset or collateral. It means they are not secured or there is no security against them. they are backed only by the reputation of the issuer. An example of government bond is Treasury bill or Treasury Bond (T- Bill).

2. a- What is a Junk Bondb- What is a debentureSolution.pdf

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2. A political party sends a mail survey to 1500 randomly selected registered voters in a community. The survey asks respondents to give an opinion about the job performance of the current President. Of the 1500 surveys sent out, 480 are returned, and of these, only 120 say they\'re satisfied with the President\'s job performance. This is an example of A. a survey with little bias since people understand whether they approve of the President\'s job performance. B. a survey with little bias because 1500 voters represent an important part of his district. C. a survey containing nonresponse. D. All of the above Solution A. a survey with little bias since people understand whether they approve of the President\'s job performance..

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2. A media consulting company installs software on the set-top boxes of 100,000 U.S. cable TV customers; every ten seconds, the software records what channel is being viewed. These cable customers have agreed to participate, providing the media company with demographic data, such as age, gender, and income. Each week, the media company publishes rankings of each cable channel. I. What is the population? II. What is the sample? III. Is the study observational or experimental? Justify your answer. IV. What are the variables? V. For each of those variables, what level of measurement (nominal, ordinal, interval, or ratio) was used to obtain data from these variables? Solution 1. All US cable customers 2. 100,000 cable customers participating 3. Observational. No groups or variables are being manipulated. The researchers are simply recording what people are doing. 4. Age, Gender, Income, What channel is being watched, and other demographic variables (unnamed here). 5. Age: ratio Gender: nominal Income: ratio Channel watched: nominal.

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Create 2 independent programs that perform communication using named pipes. One program will be the server program that will wait for client to send some data via a named pipe. The data sent by the client is as follows: Operator operand1 operand2 The operands can be +, -, *, /. The server will then apply the operator on the operands and return the result to client via named pipe. The client will then print the result on the screen For example, if the client passed the following to the server: + 4 10, then the server will calculate 4+10 and return 14 to client via the pipe. The client will then print it. Solve it using C language...

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CPU scheduling algorithms simulation with IO management using arriva.pdf

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Course: Cryptography Answer in C or C++ create a program that can securely transfer files between two computers using RSA encryption. RSA is a widely used public key encryption algorithm that uses two keys, a public key for encryption and a private key for decryption. Requirements: 1. The program should allow the user to select a file to transfer and the public key of the recipient. 2. Implement a key exchange protocol, such as Diffie-Hellman key exchange, to securely exchange the public keys between the sender and the recipient. 3. The program should then encrypt the file using RSA encryption with the recipient's public key or create your own encryption algorithm. 4. The program should transfer the encrypted file to the recipient's computer using a secure connection, such as SSH or HTTPS. 5. The recipient's computer should then use their private key to decrypt the file. Implementation: 1. Start by importing the necessary libraries for RSA encryption, such as `openssl/rsa.h` and `openssl/pem.h`. 2. Define a function that takes two arguments: the file to be encrypted and the public key of the recipient. 3. Use the RSA algorithm to encrypt the file with the recipient's public key, using a block size of 128 bits and padding scheme such as PKCS#1 v1.5 or OAEP. 4. Use a secure connection protocol, such as SSH or HTTPS, to transfer the encrypted file to the recipient's computer. 5. On the recipient's computer, use their private key to decrypt the file, using the same RSA algorithm and padding scheme as before. 6. Test the function by transferring files between two computers and verifying that the files are correctly encrypted and decrypted. Modifications: 1. Add a checksum to the encrypted file to ensure that it has not been tampered with during transfer. 2. Implement a secure file transfer protocol, such as SFTP or SCP, to transfer the encrypted file without relying on a separate secure connection. 3. Apply the encryption technique to a larger dataset, such as a database of sensitive information or a cloud storage service..

Course CryptographyAnswer in C or C++create a program that can .pdf

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Courtney, who is much older than she appears, founded Talbot, Inc., in 2001 and has spent the last 22 years building the company into a major retailer of off-road vehicles. Courtney owns 70% of the stock of Talbot, Inc., with a $700,000 total stock basis. Her three children Thomas, Yulisa and Abel each own 10%. Over the years, Courtney has built up a strong company with impressive borrowing capacity. But, Talbot, Inc. has never owned any real estate. Now Courtney wants to retire by selling, in one single transaction, her entire 70% interest in Talbot, Inc. back to the company for $32,000,000. Following the sale, Courtneys stock will be cancelled, leaving Thomas, Yulisa, and Abel as equal one-third owners of Talbot, Inc. Courtneys goal is to pay as little federal income tax on the sales proceeds as the law allows. She plans to use IRC 1231, 1244 and 1202 to avoid as much tax as possible, and then turn to a Qualified Opportunity Zone Fund to avoid additional federal income taxes. Assume Talbot, Inc., stock and Courtneys ownership of the stock meets the requirements of 1244, 1202 and Quaified Opportunity Zone investment. (5 Points). What is the maximum amount of gain that can be excluded from federal income taxes under IRC 1231? (5 Points). What is the maximum amount of gain that can be excluded from federal income taxes under IRC 1244? (10 Points). What is the maximum amount of gain that can be excluded from federal income taxes under IRC 1202? (5 Points). Out of the remaining gain, if any, that has not been excluded under 1231, 1244, and 1202, what is the maximum amount of gain that can be excluded from federal income tax by investment in one single Qualified Opportunity Zone Fund?.

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