In the Program Evaluation and Review Technique (PERT), we are interested in the total time to complete a project that is comprised of a large number of subprojects. For illustration, let be three independent random times for three subprojects. If these subprojects are in series (the first one must be completed before the second starts, etc.), then we are interested in the sum If these are in parallel (can be worked on simultaneously), then we are interested in Z = max(). In the case each of these random variables has the uniform distribution with pdf , zero elsewhere, find (a) the pdf of Y and (b) the pdf of Z.

## Statistician | My Assignment Tutor

Let be the observed values of the order statistics of a random sample of size n = 3 from a continuous type distribution. Without knowing these values, a statistician is given these values in a random order, and she wants to select the largest; but once she refuses an observation, she cannot go back. Clearly, if she selects the first one, her probability of getting the largest is 1/3. Instead, she decides to use the following algorithm: She looks at the first but refuses it and then takes the second if it is larger than the first, or else she takes the third. Show that this algorithm has probability of 1/2 of selecting the largest.

## High-temperature setting | My Assignment Tutor

Refer to Exercise 4.1.1. Using expression (4.4.10), obtain a confidence interval (with confidence close to 90%) for the median lifetime of a motor. What does the interval mean? Exercise 4.1.1 Twenty motors were put on test under a high-temperature setting. The lifetimes in hours of the motors under these conditions are given below. Also, the data are in the file lifetimemotor.rda at the site listed in the Preface. Suppose we assume that the lifetime of a motor under these conditions, X, has a Γ(1, θ) distribution. (a) Obtain a histogram of the data and overlay it with a density estimate, using the code hist(x,pr=T); lines(density(x)) where the R vector x contains the data. Based on this plot, do you think that the Γ(1, θ) model is credible? (b) Assuming a Γ(1, θ) model, obtain the maximum likelihood estimate θ 9 of θ and locate it on your histogram. Next overlay the pdf of a Γ(1, θ 9) distribution on the histogram. Use the R function to evaluate the pdf. (c) Obtain the sample median of the data, which is an estimate of the median lifetime of a motor. What parameter is it estimating (i.e., determine the median of X)? (d) Based on the mle, what is another estimate of the median of X?

## Paired design | My Assignment Tutor

On page 373 Rasmussen (1992) discussed a paired design. A baseball coach paired 20 members of his team by their speed; i.e., each member of the pair has about the same speed. Then for each pair, he randomly chose one member of the pair and told him that if could beat his best time in circling the bases he would give him an award (call this response the time of the “self” member). For the other member of the pair the coach’s instruction was an award if he could beat the time of the other member of the pair (call this response the time of the “rival” member). Each member of the pair knew who his rival was. The data are given below, but are also in the file selfrival.rda. Let μd be the true difference in times (rival minus self) for a pair. The hypotheses of interest are The data are in order by pairs, so do not mix the order. (a) Obtain comparison boxplots of the data. Comment on the comparison plots. Are there any outliers? (b) Compute the paired t-test and obtain the p-value. Are the data significant at the 5% level of significance? (c) Obtain a point estimate of μd and a 95% confidence interval for it. (d) Conclude in terms of the problem.

## Dosage | My Assignment Tutor

Verzani (2014), page 323, presented a data set concerning the effect that different dosages of the drug AZT have on patients with HIV. The responses we consider are the p24 antigen levels of HIV patients after their treatment with AZT. Of the 20 HIV patients in the study, 10 were randomly assign the dosage of 300 mg of AZT while the other 10 were assigned 600 mg. The hypotheses of interest are (a) Obtain comparison boxplots of the data. Identify outliers by patient. Comment on the comparison plots. (b) Compute the two-sample t-test and obtain the p-value. Are the data significant at the 5% level of significance? (c) Obtain a point estimate of Δ and a 95% confidence interval for it. (d) Conclude in terms of the problem.

## Data set concerning | My Assignment Tutor

Verzani (2014), page 323, presented a data set concerning the effect that different dosages of the drug AZT have on patients with HIV. The responses we consider are the p24 antigen levels of HIV patients after their treatment with AZT. Of the 20 HIV patients in the study, 10 were randomly assign the dosage of 300 mg of AZT while the other 10 were assigned 600 mg. The hypotheses of interest are (a) Obtain comparison boxplots of the data. Identify outliers by patient. Comment on the comparison plots. (b) Compute the two-sample t-test and obtain the p-value. Are the data significant at the 5% level of significance? (c) Obtain a point estimate of Δ and a 95% confidence interval for it. (d) Conclude in terms of the problem.

## OVERVIEW OF METHODS IN BUSINESS RESEARCH – SLP 4 –

I have uploaded the previous SLPs for your reference. Required ReadingTrochim, W. M. (n.d.) The Research Methods Knowledge Base, 2nd Edition. Retrieved from http://www.socialresearchmethods.net/kb/qualdata.php Marshall, C., & Rossman, G. B. (2006). Designing Qualitative Research (4th ed.). Thousand Oaks, CA: Sage Publ.Chapter 4: Data Collection Methods. Available at https://www.sagepub.com/sites/default/files/upm-binaries/10985_Chapter_4.pdf North Dakota Compass (n.d.) Data Collection Methods. Qualitative Data Collection Methods. Available at http://www.ndcompass.org/health/GFMCHC/Revised%20Data%20Collection%20Tools%203-1-12.pdf Optional ReadingOBrian, R. (1998).* An overview of the methodological approach of action research. Available at from http://www.web.net/~robrien/papers/arfinal.html Trochim, W. (2006).* Qualitative measures. Research methods knowledge base. Available at from http://www.socialresearchmethods.net/kb/qual.php *Resource is dated; however, it provides significant contribution to content discussion. Varja, K., Talley, J., Meyers, J., Parris, L., & Cutts, H. (2010). High school students perceptions of motivations for cyberbullying: An exploratory study. The Western Journal of Emergency Medicine, vol11(3). pp. 269273. Retrieved January 2014 from EBSCO. As you address the components of the mini-proposal outlined below, pretend you are writing this document for committee members of your doctoral project. Provide enough detail to indicate that you have given each step of the research process serious consideration. Prepare a PowerPoint presentation of your mini-proposal with the following components: Title: Provide a title for your proposal.Rationale: Identify the topic and describe why this study is needed for a given organization (include a justification of the importance of your topic either from empirical evidence or literature).Research Question(s): Identify one or two research questions based on the rationale.Literature Review: What topics would have to be covered in your literature review? (Just list the topics.) List business theories that would be relevant to this study. Explain why they would be relevant.Methodology: Discuss the research design (e.g., qualitative case study, quantitative survey, action/evaluation research) that would be appropriate to answer your research question(s). Who would be the participants? What would be the procedures for data collection and analysis?Significance: Discuss how your research would help the organization and who would benefit.Reference listUpload your presentation into the SLP4 dropbox. Please note that for SLP 5 you will be asked to record a 5- to 8-minute (no more than 8 minutes) video presentation using these slides with Blackboard Collaborate. Then you will share the link to your presentation in the Module 5 Discussion. SLP Assignment ExpectationsLength: The PowerPoint presentation should have 7 to 12 slides. Organization: Slide titles should be used to organize your paper according to the questions. Grammar and Spelling: While no points are deducted for minor errors, assignments are expected to adhere to standard guidelines of grammar, spelling, punctuation, and sentence syntax. Points may be deducted if grammar and spelling impact clarity. We encourage you to use tools such as grammarly.com and proofread your paper before submission. As you complete your assignment, make sure you do the following: Answer the assignment questions directly.Stay focused on the precise assignment questions. Do not go off on tangents or devote a lot of space to summarizing general background materials.Use evidence from your readings to justify your conclusions.Be sure to cite at least five credible resources.Make sure to reference your sources of information with both a bibliography and in-text citations. The post OVERVIEW OF METHODS IN BUSINESS RESEARCH – SLP 4 appeared first on Template.

## maximum time frame appeal letter –

1. Letter explaining the special circumstances that prevented you from completing your program within the maximum time-frame (i.e. change of program, 2nd degree, transferred units). So first of all when I transferred only few of my courses I took in community college has been accepted toward my transcript. Second, my family was going through a economically hard situation. not only It was mentally hard time but also it led me to work so my focus on study was kinda disrupted. Third last year I was focusing on GPA rather than graduation. Fourth I did not know there was a maximum time frame that I need to graduate. Fifth, I was very confident in CS and believed I can do good when I arrived to UCSD, but facing a harsh courseworks and difficulties let me discouraged a lot. I was even depressed. I could not accept C grades in my courses so I dropped a lot of classes. However, retaking courses did not increase my GPA. I was more and more depressed. However, from now on I will devote myself into school and try to graduate next year. The post maximum time frame appeal letter appeared first on Template.

## ETHICS AND IRB – CASE –

Required ReadingTrident University International. (2017). Institutional Review Board. Website available at https://www.trident.edu/students-and-alumni/institutional-review-board/ Trident University International (2017). IRB Resources. PhD Trident Wiki. Available at http://phdtrident.pbworks.com/w/page/106578105/IRB%20tools Protecting Human Research Participants. NIH Office of Extramural Research. Training site available at https://phrp.nihtraining.com/users/login.php Bhattacherjee, Anol, “Social Science Research: Principles, Methods, and Practices” (2012). Textbooks Collection. 3. http://scholarcommons.usf.edu/oa_textbooks/3 Optional ReadingKitchener, K., & Kitchener, R. (2009). Social science research ethics: Historical and philosophical issues. In D. Mertens, & P. Ginsberg (Eds.), The handbook of social research ethics. (pp. 523). Thousand Oaks, CA: SAGE Publications, Inc. Mabry, L. (2009). Governmental regulation in social science. In D. Mertens, & P. Ginsberg (Eds.), The handbook of social research ethics. (pp. 107121). Thousand Oaks, CA: SAGE Publications, Inc. Speiglman, R., & Spear, P. (2009). The role of institutional review boards: Ethics: Now you see them, now you don’t. In D. Mertens, & P. Ginsberg (Eds.), The handbook of social research ethics.(pp. 121135). Thousand Oaks, CA: SAGE Publications, Inc Lincoln, Y. (2009). Ethical practices in qualitative research. In D. Mertens, & P. Ginsberg (Eds.), The handbook of social research ethics. (pp. 150170). Thousand Oaks, CA: SAGE Publications, Inc. Wolf, A., Turner, D., & Toms, K. (2009). Ethical perspectives in program evaluation. In D. Mertens, & P. Ginsberg (Eds.), The handbook of social research ethics. (pp. 170185). Thousand Oaks, CA: SAGE Publications, Inc Mark, M., & Gamble, C. (2009). Experiments, quasi-experiments, and ethics. In D. Mertens, & P. Ginsberg (Eds.), The handbook of social research ethics. (pp. 198214). Thousand Oaks, CA: SAGE Publications, Inc. Assignment OverviewIn this assignment you will discuss Research Ethics, the ethical principles of scientific research, the purpose of the institutional review board and professional code of ethics. Read carefully Chapter 16 of this book: Bhattacherjee, Anol, “Social Science Research: Principles, Methods, and Practices” (2012). Textbooks Collection. 3. http://scholarcommons.usf.edu/oa_textbooks/3. Chapter 16. pp. 137-142 Case AssignmentUse the information provided in the readings to write a 5- to 7-page paper that discusses the ethical considerations for quantitative, qualitative, and action/evaluation research designs. Explain the purpose of an Institutional Review Board (IRB). In your own words, describe the steps of the IRB process at Trident and provide a summary of the components required in the IRB application at Trident. Finally, describe one professional code of ethics from an area of your choice. The post ETHICS AND IRB – CASE appeared first on Template.

## Important Supreme Court Case from 1920-2014 –

What impact did specific Supreme Court decisions have on American society between 1920-2014? Briefly discuss background on Three to Four specific cases and analyze the impact these cases had on the economy, politics, and social/race relations. Which Supreme Court Case do you believe had the biggest impact on American society between 1920-2014? Why? Material for this question can be found at internet sites that provide a summary and analyses of the cases.Support your opinion with persuasive evidence from outside sources and websites. Cite any direct quotes or outside material used. For outside sources you must cite in Bibliography at end of paper. Underline your thesis-main argument. You need to have an Introduction, thesis statement, coherent/logical paragraphs, persuasive evidence and a conclusion. The post Important Supreme Court Case from 1920-2014 appeared first on Template.