Find two ways of decomposing h(x) = (x-3)^2. State the order to follow when graphing a function requiring multiple transformations. Give an example.

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Discussion (Functions Transformation)

Instructions:

  1. Post your answer to one of the following questions:
    1. Find two ways of decomposing h(x) = (x-3)^2.
    2. State the order to follow when graphing a function requiring multiple transformations. Give an example.
  2. Your post needs to be at least 100 words.
  3. Comment on at least two (2) other classmates’ posts (“that was good”, “I agree with you”, or “you are correct” will not be considered substantial)
    • Your comments to your classmates’ posts need to be at least 50 words for each one

What is the market risk premium (rM – rRF)? What is the beta of Fund P? What is the required return of Fund P? Would you expect the standard deviation of Fund P to be less than 15%, equal to 15%, or greater than 15%?

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Mathematics multi-part question

Consider the following information for three stocks, Stocks A, B, and C. The returns on the three stocks are positively correlated, but they are not perfectly correlated. (That is, each of the correlation coefficients is between 0 and 1.)

Stock Expected Return Standard Deviation Beta
A 8.37 % 15 % 0.7
B 10.01 15 1.1
C 11.65 15 1.5

Fund P has one-third of its funds invested in each of the three stocks. The risk-free rate is 5.5%, and the market is in equilibrium. (That is, required returns equal expected returns.) The data has been collected in the Microsoft Excel Online file below. Open the spreadsheet and perform the required analysis to answer the questions below.

 

Open spreadsheet

  1. What is the market risk premium (rM – rRF)? Round your answer to two decimal places.%
  2. What is the beta of Fund P? Do not round intermediate calculations. Round your answer to two decimal places.
  3. What is the required return of Fund P? Do not round intermediate calculations. Round your answer to two decimal places.%
  4. Would you expect the standard deviation of Fund P to be less than 15%, equal to 15%, or greater than 15%?
    1. less than 15%
    2. greater than 15%
    3. equal to 15%

Perform the indicated operation. 𝑥2−12𝑥+32 𝑥2−6𝑥−16 ÷ 𝑥2−𝑥−12 𝑥2−5𝑥−24

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Math 95 MTWR 8am

Quiz 3
Due: 2/23/2023 by 11:59pm
Directions: Show all work for credit and record final answers on the blank provided.

Homework Problem #31 from 7.2 p.420 (10 points):
31. Multiply.
3𝑥2−13𝑥−10
𝑥2−2𝑥−15 ∙ 𝑥2+𝑥−2
3𝑥2−𝑥−2

Homework Problem #45 from 7.2 p.421 (10 points):
45. Perform the indicated operation.
𝑥2−12𝑥+32
𝑥2−6𝑥−16 ÷ 𝑥2−𝑥−12
𝑥2−5𝑥−24

Prepare a short presentation that explains some foundational aspects of hypothesis testing for the middle school civics class. Try to keep your explanations and examples at a level that is appropriate for this age group to understand.

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Power Point Presentation

You have been asked to prepare a presentation for your local middle school civics class. The students have been seeing and hearing information online about statistics and statistical significance leading up to the presidential election. They are confused about what exactly that means.

Prepare a short presentation that explains some foundational aspects of hypothesis testing for the middle school civics class. Try to keep your explanations and examples at a level that is appropriate for this age group to understand.

Create a 5- to 7-slide Microsoft® PowerPoint® presentation and include speaker notes.

In your presentation, help the students understand the following:
What are inferential statistics?
What is hypothesis testing?
What is a null and an alternative hypothesis?
How do we talk about null and alternative hypotheses?
What is alpha?
What is the p value, and what does it mean to be statistically significant?
What does it mean for a result to be inferred to the population?
What are some limitations of hypothesis testing?
Which types of questions can be answered by hypothesis testing and which cannot?

What is your data collection plan? What measures will you use to mitigate statistical error? What is your rationale for each part of your plan? How will your choices better aid leadership in making their decision?

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Statistics

You are on a team that is investigating which health insurance provider to contract with to offer insurance to the employees. You are in charge of creating the plan for collecting the data that will be used for a statistical test to help the organization make that decision. You have been asked to present your plan and inform stakeholders about the risks you are trying to avoid so that you are able to have valid and reliable results.

Create a 5- to 7-slide Microsoft® PowerPoint® presentation and include speaker notes.

Explain the following in your presentation:
What is your data collection plan?
What measures will you use to mitigate statistical error?
Decrease uncertainty
Increase power
Conduct a representative sample
Increase robustness
Acceptable reliability and validity
Reduce error
No violation of assumptions for statistical tests
What is your rationale for each part of your plan? How will your choices better aid leadership in making their decision?

Record your findings with the relevant text in a document (Microsoft Word for example) and support your results with as many screenshots from your spreadsheet as you need to.

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Data-driven decision-making

Below you will find 2 files: Data-driven decision-making – CA.pdf and 201306-citibike-tripdata.csv.

Data-driven decision-making – CA.pdf contains the brief and questions for your assignment. 201306-citibike-tripdata.csv. is the file containing the data you will be asked to work on.

Record your findings with the relevant text in a document (Microsoft Word for example) and support your results with as many screenshots from your spreadsheet as you need to.

Also send the excel file used when working on the assignment including all formulas and calculations to me.

 

What proportion of employees spend less than 15 minutes a day commuting? What proportion of employees spend more than 30 minutes commuting each day?

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PSYC 2317: Statistical Methods for Psychology

Instructions: Complete each problem below. You may submit your completed exam in Canvas using one of two file formats: either (1) write your solutions on paper and scan to a PDF, or (2) write your solutions in a Word/OpenOffice document. Be sure to save your work as a PDF. On either method, please show (or describe) as much work as possible. Report your final answers rounded to 2 decimal places.

1. A sample of N = 35 scores has a mean of X = 10. One score of X = 51 is added to the sample. What is the new value for the sample mean?

2. An expert reviews a sample of 8 scientific articles and records the following numbers of errors in each article: 2, 5, 6, 9, 4, 6, 3, 7. Compute the mean and median for this data.

3. A social psychologist records the age (in years) that a sample of eight participants experienced coffee for the first time. The recorded ages are 21, 19, 16, 14, 16, 15, 17, 11. Compute the variance and standard deviation for this data.

4. For a set of scores with mean 80 and standard deviation 15, find the z-score that corresponds to each of the following X-values: 55, 65, 35, 20.

5. For a set of scores with μ = 145 and σ = 25, find the X-value that corresponds to each of the
following z-scores: 1.50, -0.50, 2.00, -1/3

6. A set of exams are reported as X-values and z-scores. On this exam a score of X = 82 corresponds to a Z = 0.5 and X = 70 corresponds to a Z = 1.0. Use this information to find the mean and standard deviation for the complete set of exams.

7. A set of exam scores has a mean of 50 and a standard deviation of 8. The instructor would like to transform the scores into a standardized distribution with a new mean of 100 and new standard deviation of 15. Find the transformed value for each of the following scores from the original population: 55, 67, 46, 34.

8. A normal distribution has a mean of μ = 85 with σ = 5. What proportion of scores in this distribution are:
(a) Above 115?
(b) Below 118?
(c) Between 91 and 115?

9. The average employee in the US spends μ = 25 minutes commuting to work each day. Assume that the distribution of commute times is normal with a standard deviation of σ = 8 minutes.
(a) What proportion of employees spend less than 15 minutes a day commuting?
(b) What proportion of employees spend more than 30 minutes commuting each day?
Wait! There is one more problem on the next page!

10. For a normal population with μ = 50 and σ = 15, what is the probability of obtaining a sample mean:
(a) Greater than 62 for a sample of n = 36 scores?
(b) Greater than 62 for a sample of n = 9 scores?

What are the three next numbers? Write in your own words an algorithm to solve this problem for any additional numbers.

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Linear Algebra

Given this sequence of numbers: 9 13 19 27 37

  1. a) What are the three next numbers?
  2. b) Write in your own words an algorithm to solve this problem for any additional numbers.
  3. c) Explain how you would use Linear search to find the value 27?

What do you understand by the term ‘linear search’?

You have an array – [13 6 7 12 15 19 66 8 ], and you are looking for the value 20.

What is the outcome?

State your response in at least two ways/forms.

Refence APA / MLS Format.

 

Prepare a 3-5 page paper on cryptocurrencies and security and dispute resolution and support your findings with research. How have cryptocurrencies taken a dominant role in this area? Explain.

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Cryptocurrencies

Prepare a 3-5 page paper on cryptocurrencies and security and dispute resolution and support your findings with research. How have cryptocurrencies taken a dominant role in this area? Explain.

Your paper should be 3-5 pages long (excluding the title and reference pages) and formatted according to APA.

Compose your essay in APA format, including the introduction and conclusion, and in-text citations for all sources used. In addition to your 3-5 page essay, you must include an APA-style title page and reference page.

 

Bari Jay, a gown manufacturer, received an order for 600 prom dresses from China. Her cost is $35 a gown. If her markup based on selling price is 79%, what is the selling price of each gown? Round to the nearest cent.

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Week 8 Math

WORD PROBLEMS

8-15. Calculate the final selling price to the nearest cent and markdown percent to the nearest hundredth percent:
Original First Second Final selling price markdown markdown Markup markdown $5.000 20% 10% 129; 5%

8-16. Bari Jay, a gown manufacturer, received an order for 600 prom dresses from China. Her cost is $35 a gown. If her markup based on selling price is 79%, what is the selling price of each gown? Round to the nearest cent. LU 8-2(2)

8-17. Brian May, guitarist for Queen, does not know how to price his signature Antique Cherry Special that cost him £280 to make. He knows he wants 85% markup on cost. What price should Brian May ask for the guitar? Note: “f” is the pound sterling symbol.LU 8-1(2)

8-18. You are buying and reselling items found at your local thrift shop. You found an antique pitcher for sale. If you need a 40% markup on cost and know most people will not pay more than $20 for it, what is the most you can pay for the pitcher? Round to the nearest cent. LU 8-1(4)

My Money

8-19. Macy’s was selling Calvin Klein jean shirts that were originally priced at $58.00 for $8.70. (a) What was the amount of the page233 markdown? (b) Based on the selling price, what is the percent markdown? LU 8-3(1)

8-20. Brownsville, Texas, boasts being the southernmost international seaport and the largest city in the lower Rio Grande Valley. Ben Supple, an importer in Brownsville, has just received a shipment of Peruvian opals that he is pricing for sale. He paid $150 for the shipment. If he wants a 75% markup, calculate the selling price based on selling price. Then calculate the selling price based on cost. LU 8-1(2), LU 8-2(2)

8-21. Front Range Cabinet Distributors in Colorado Springs, Colorado, sells to its contractors with a 42% markup on cost. If the selling price for cabinets is $9,655, what is the cost to contractors based on cost? Round to the nearest tenth. Check your answer. LU 8-1(3)