Why, if you were a state government employee, would you prefer to participate in a defined benefit or a defined contribution pension plan? Explain the difference between the two types of plans in your answer

A materials engineer at a furniture manufacturing site wants to assess the stiffness of the particle board that the manufacturer uses. The engineer collects stiffness data from particle board pieces that have various densities at different temperatures. Data are found in the file Particle Board Stiffness.

1. What hypothesis should be run to determine if there is a significant association between stiffness and temperature?
2. Run the appropriate test is Minitab and show the Minitab output.
3. State your conclusions about the strength of this relationship if we use a 5% level of significance.
4. Are these conclusions supported by the R² value for this relationship? Explain.

A group students collected data on the speed of vehicles traveling through a construction zone on a state highway, where the posted speed was 45 mph. The recorded speed (in mph) of 15 randomly selected vehicles is given below. You should be able to copy and paste them into Excel.

- Use Excel Data Analysis to find the mean, median, and mode of the data set. Make sure that you clearly state or point out which numbers are which. Don’t expect me to pick the numbers I want.

- Assuming speeds are approximately normally distributed, use Data Analysis to construct a 95% confidence interval for the true mean speed of drivers in this construction zone. Interpret the interval.

- Construct a 99% confidence interval for the true mean speed of drivers in this construction zone. Interpret the interval.

- Compare the widths of the 95% and 99% confidence intervals.

- What conclusions do you draw about the speeds people drive in this construction zone?

2. We have multiple important muscles or muscle groups in the body. Chose one of the following and detail its attachment, insertion, the part of the body it moves, and anything else of particular importance: quadriceps; biceps; triceps; hamstrings; gluteus Maximus; gluteus mini us; gastrocnemius; sartorial; rotator cuff; pectorals; wrist flexor a; wrist extensor a; or tibial is anterior. Explain with support of the appropriate chapters in your book. Using Patton, K. T ; & Thibodeau, G.A. (2015) Anatomy and physiology (8th Ed.) Mosby

1. The standardized IQ test is described as a normal distribution with 100 as the mean score and a 15-point standard deviation.

a. What is the Z-score for a score of 150?

b. What percentage of scores are above 150?

c. What percentage of scores fall between 85 and 150?

d. What does it mean to score in the 95th percentile?

e. What is the score that corresponds to being in the 95th percentile?

2. A friend wants to learn about the average weekly take-home pay for an Uber driver in Arkansas. After asking Uber to tell her this, they denied her request saying if she wanted to find out she would need to ask people on her own. With the help of a local ride-sharing driver organization, she obtained what she believes to be a list of all Uber drivers in the state of Arkansas. She asks you for help in figuring out what to do next.

a. What is the population and parameter of interest?

b. What is the sample statistic of interest?

3. After looking at the list you find out that there are 40,000 drivers listed. She doesn’t have money to contact 40,000 drivers in her research budget. Instead, she can talk to about 1,000. In your email reply to her, you tell her that it shouldn’t be a problem that she can only talk to about 1,000 drivers, assuming you select them the right way  

a. What is the “right way” to select the drivers? Make sure to explain what the “right way” is, not just provide the term.

b. Why do you tell her that it’s not a problem if you select them the right way? That is, what explanation do you give to her to explain that she can learn what she wants with the small sample? Your explanation should include the basics of probability sampling, sampling distributions, and the central limit theorem.

4. Agreeing to move forward with the research, she asks you to explain the different ways of developing a sample. She also mentioned she was interested in comparing the differences in earnings between women who are mothers, women who are not, and men.

a. How would you describe simple random sampling to her, and how would you construct a simple random sample from these data?

b. Describe systematic sampling to her and describe how you might construct such a sample from these data.

c. Describe stratified random sampling to her, how it might be useful for comparing the earnings between women who are mothers, those who aren’t, and men, and how you might construct such a sample from these data.

5. If the population parameter is $400, with a standard deviation of $100. What percentage of your potential sample statistics from the population of size 1,000 will fall between a value of $393.68 and $406.32?

Suppose you are a lawyer representing a Hispanic individual in a criminal trial. Twelve jurors are randomly selected by the state from a population that you know to be 60% Hispanic. a. How many jurors would you expect to be Hispanic?

b. The select process produces a jury with 3 Hispanic individuals What proportion of the jury is Hispanic? (Enter your answer as a decimal, rounded to four decimal places)

c. Use the binomial distribution and find the probability that 3 or fewer jurors would be Hispanic.

d. Create a graph of the distribution with the area corresponding to the previous answer shaded in. Choices for creating a graph include: Excel, Binomial Distribution Calculator (in resources menu), TI-84 (take a pic), hand drawn, other software, websites. Upload your finished graph below. Choose File2262020.docx

e. Use Statistics to make an argument to the court on behalf of your client. Structure your essay in the following way:

Your Honor,

Explain why random sampling in this situation of juror selection relates the expected sample proportion to the population proportion.

Compare the expected value to the actual sample proportion.

Show that the requirements for a binomial experiment are met in this situation, implying that the binomial distribution can be used.

Identify the values for n,p, and x for this situation

Interpret the answers to parts c. and d. and submit them as evidence.

Use this to argue that the juror selection was likely to be random or not likely to be random (depending on your answer to part c).

Request a new jury be selected.

Respectfully, Your Name

What communication tools and models/frameworks do you use or would you use in your organization? Why? with this words.

Patient Centered Clinical Model

The 3 Function Model Essential

Elements of Communication

1. Don't use handwriting.

2. Don't copy and paste (((use your own words.))))

Q1:What is the difference between a population and a sample in statistics? (in details) (((use your own words.))))

Q2. How to interpret confidence intervals and confidence levels?(in details) (((use your own words.))))
Q3. Why the p-value is important?(in details) (((use your own words.))))

**Please don't use handwriting
**Please don't copy and paste use your own word

Q1:What are the roles of a project sponsor and the approval committee during the different SDLC phases?

Part 2:

Assume the following scenario:

A small company needs to develop an information system for the Finance and Accounting Department. As an analyst which process model would you prefer and why?

Part 3:There are three techniques which help users discover their needs for the new system, list and compare these techniques in terms of impactful changes. Also, explain BPR.

A drug manufacturer claims that its new drug causes faster red-cell buildup in anemic people than the drug currently used. A team of doctors tests the drug on 6 randomly selected people and compares the results with the current buildup factor of 7.1 (this is the buildup factor for the current drug). The results of the 6 peoples are (theses are red-cell buildup factors):

6.3 7.8 8.1 8.3 8.7 9.4.

Test the manufacturer’s claim by stating the null and alternative hypothesis, then make your decision and draw your conclusions using the following methods. (Note: since this is a medical study, researchers often want to be very certain that a new drug does what it states it does. As a result, the test is often performed with a low level of significance, as is the case here, meaning that you require very strong evidence against the null hypothesis before you will reject it)

(a) Classical testing at α = 1%

(b) The p-value method.