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Conceptual understanding: Model questions history essay help: history essay helpFinal Exam DPEE
Note:
· For demonstrating conceptual understanding, you are required to work on the model that is easier to handle or compute, not necessarily the more suitable (or more complicated) model for the dataset. Follow the question description.
· You don’t need to check the assumption of a model unless the question asks for it. For example, if the question asks you to make prediction based on a model, you don’t need to check the assumption for the model before making prediction.
· For any of the testing (hypothesis test) problem, define Ho/Ha, compute the test statistic, report the exact p value, and state the conclusion. The default alpha value is 5%, unless specify.
· Elaborate your reasoning clearly and show relevant plots, R results, and tables to support your opinion in each step and conclusion.
· Submit the Rmd file and the corresponding pdf file knitted from it, along with your answer, this format is similar to your homework.
· The data is real, just like the project you are working on. Hence it is possible that even after the remedial method has been done, the model is still not perfect. When this happens, evaluation will be based on the level you execute the methods covered in Stat512 to improve the model. Don’t worry if your model is not perfect, try your best to demonstrate the skill set you learn in this class.
Study the data with a linear analysis and complete the problems. The data set, dataDPEE.csv has 3 continues predictors and two categorical predictors.
Problem 1. Consider only the first order model with X1, X2 and X3, perform the following hypothesis.
a. (10) whether X1 can be dropped from the full model.
> dpeemod <- lm(y ~ x1 + x2 + x3)
> plot(dpee)
> summary(dpeemod)
Call:
lm(formula = y ~ x1 + x2 + x3)
Residuals:
Min 1Q Median 3Q Max
-15.948 -11.640 -1.480 6.402 31.650
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 90.79017 22.07408 4.113 0.00106 **
x1 -0.68731 0.47959 -1.433 0.17377
x2 -0.47047 0.24227 -1.942 0.07254 .
x3 -0.06845 0.46523 -0.147 0.88513
—
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 14.75 on 14 degrees of freedom
Multiple R-squared: 0.6257, Adjusted R-squared: 0.5455
F-statistic: 7.8 on 3 and 14 DF, p-value: 0.002652
Ho: X1 is significant and cannot be dropped from the model.
Ha: X1 can be dropped from the model.
Using the model Y~X1 + X2 + X3,
b. (10) whether X1 can be dropped from the model containing only X1 and X2.
Problem 2 (10) Consider the first order model with X1, X2 and X3, simultaneously estimate parameters (beta1, beta2 and beta3) with a confidence level of 75%.
Problem 3 (20) Perform appropriate analysis to diagnose the potential issues with the first order full mode with X1 X2 and X3, improve the model as much as possible with the methods covered in Stat512. You should also consider the assumption checking for your revised model.
Problem 4
a. (10) Compute AIC, BIC, and PRESSP to compare the following two models.
· The model on the first order terms for X1 and X2 and the interaction term X1X2.
· The model on the first order terms for X1, X2 and X3
Do they all yield the same better model? If not, explain.
b. (10) Select the model that you think is better to predict the mean response value, then predict the mean response for the following case, at a confident level of 99%.
x1
x2
x3
45
36
45
Problem 5
X4 and X5 are two factors on Y.
a. (10) Is there any significant interaction effect between X4 and X5 on Y?
b. (10) With the ANOVA method, compute the 95% confidence interval for the following difference, respectively:
D1= The difference in the mean of Y when (X4=high, X5=less) and (X4=high, X5=more)
D2= The difference in the mean of Y when (X4=low, X5=less) and (X4=low, X5=more)
c. (10) With the ANOVA method, compute the 95% confidence interval for
D1-D2
Where D1 and D2 are described in b.
How is your result related to a?
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Security architecture and design paper argumentative essay help
Respond to each question below. Remember to cover all aspects of the question.
Successful security architecture needs upper management to support for effective security standards and protocols. However, there are possible disadvantages to upper management involvement. List and describe the tradeoffs in business between rigorous security and delivering products to customers. Go beyond merely the automated solutions, or the technical checks that can be done without much human support.
Examine how capturing, standardizing, applying patterns, and standard solutions help to increase efficiency and maintain delivery teams’ velocity. Provide at least 3 real-world examples which describe and examine how they provide the velocity. Do not simply provide a list of things teams can do but for each idea, define the idea and explain its relevance.
Schoenfield lists several components of a successful security architecture practice, such as broad support across the organization, recruitment and training of security architects with the right kind of aptitude and interest, effective security requirements that enhance but do not slow down the innovation process, and finally, indicators that the security architecture team is being well utilized and adding value to project development. Describe what each of these components are and explain how each is relevant to security development. Include detail and examples.
FinalProjectPaper.docx
OriginalityReport-Plagarism.pdf
WhatsAppImage2020-12-11at6.05.48PM.jpeg
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Health Informatics & Inform System – Assignment college essay help service: college essay help service
1. Discuss at least 3 reasons for using CPOE (computerized patient order entry) (Refer to Article 1 and 2 of the resources. Consider both when building your arguments. feel free to use your own or researched examples if needed).
2. There are many different EMRs available in the marketplace. What attributes of an EMR make it more suitable than the others for each of the following sizes of practice (a set of attributes for each size practice below):
small practices,
large multi-specialty groups or community hospitals, and
multi-hospital systems?
I expect 3 pages of fact-based material to answer these questions.
Paper should be APA formatted with citation.
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Managerial Challenges essay college application essay help
Managerial Challenge
US Airways (American Airlines) owns a piece of land near the Pittsburgh International Airport. The land originally cost US Airways $375,000. The airline is considering building a new training center on this land. US Airways determined that the proposal to build the new training center is acceptable if the original cost of the land is used in the analysis, but the proposal does not meet the airline’s project acceptance criteria if the land cost is above $850,000. Assume the labor and raw materials total $1,720,000. A developer recently offered US Airways $2.5 million for the land. What is the economic profit, opportunity cost, and should US Airways (American Airlines) build the training center at this location? (Chapter 8 Economic Cost)
Submission Details:
Response should be no more than 250 words
Include the appropriate calculation
Follow the APA style of writing with in-text citations and a reference list if necessary.
. Read Articles:
“U.S. Car Business in Major Shift”
U. S. Car Business Article.pdf
“Car Making in America”
Carmaking In America Article.pdf
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