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write my assignment 15076

Select one:

a. including the D variable in model 2 results in a much larger adjusted R2, suggesting that the inclusion of the dummy variable is necessary to boost predictive power.b. the coefficient estimates for t and t2 change dramatically, even though the models are very comparable (unadjusted with a seasonal dummy is pretty close to seasonally adjusted).c. dropping the D variable in model 3 pulls the R2 down, which is unexpected since D in model 2 is statistically insignificant.d. the D variable in model 2 does a decent job of capturing the seasonal effect, since the results between the two models are not hugely different and D has the expected sign and is statistically significant.

2. The regression results for model 4 are notable because

Select one:

a. making the seasonal adjustment in the dependent variable, in addition to adding the D dummy, yields the best results in terms of significant coefficients, explanatory power, and expected signs.b. adding the redundant D variable to the seasonally adjusted data causes the coefficient estimates for t and t2 to be dramatically different than they were in models 2 and 3.c. the adjusted R2 is higher than in the comparable model 3 (without the D).d. adding a redundant seasonal dummy to already seasonally-adjusted data results in the D variable being insignificant, as expected, and the model’s explanatory power is essentially the same as models 2 and 3.

 

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write my assignment 16029

Assignment requires 1,500 words minimum, 3 references, and APA Format.

Media coverage influences the public’s perception of the criminal justice system and the policy agendas of those within the system. This often results in changes within the operational structure of the police, courts, and corrections centers. These changes include the firing of employees, the initiation of internal investigations, and the privatization of services. Respond to the following questions, and support your positions using credible research:

Assignment Guidelines

  • Address the following in at least 1,500 words:  
    • How is the criminal justice system portrayed in the media? Explain.  
      • What impact do the media have on a viewer’s perception as to the system’s efficacy in dealing with crime? Explain. 
    • Does coverage of sensationalistic and violent crime create fear among the general public? Explain.  
      • Does this fear influence criminal justice policy attitudes? Explain in detail. 
    • Is there a correlation between gender, education, income, age, and perceived neighborhood problems and police effectiveness in dealing with crime? Explain in detail. 
  • In this assignment, external research is essential to successful submission. You must utilize at least 5–7 academic or scholarly external resources to support your arguments.  
  • Be sure to reference all of your sources using APA style. 

 

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write my assignment 28623

This week’s Applying Linguistics topic focuses on the IPA and how we can apply it to the way we speak.You must think critically about the material in the assigned readings how it relates to the topics below. Follow the instructions and create a post responding to the questions. Your post will be graded on the analysis, critical thinking, organization, and accuracy.ALSO, be sure to read your classmates’ posts and respond to one of them. Your response should be original, thoughtful, and accurate. (This contributes 5 points to your Applying Linguistics grade).

  1. Choose 3 words whose pronunciations vary depending on person or dialect (it’s ok to think about pronunciations that “annoy” you). Transcribe these words for your own pronunciation and for one alternate pronunciation you have observed.
  2. Which sounds differ in the competing pronunciations? What is the articulatory difference between the differing sounds? Answer these questions for each of the 3 words, and be sure to use appropriate descriptions (place of articulation, tongue height, etc).
  3. Can you use any of the phonological rules discussed in File 3.2 to explain any of your alternate pronunciations?

Example: 

The three words are: “hillpen” and “push”

Many people pronounce “hill” with a small cap I, as in, pill, kill, and Phil. However, sometimes, if I’m not careful, I will pronounce this word with a lower case i, as in, heel, wheel, and meal. The difference between the two pronunciations is the vowel. Small cap I is a front, high, and lax vowel. Whereas, lower case i is a front, high, and tense vowel. Although both are considered high vowels, small cap I is slightly lower than lower case i. Therefore, when one pronounces hill with a small cap I, the tongue position is slightly lower than the person who uses lower case i.

“Pen” is typically pronounced with epsilon, as in, bed, fed, led, and said. However, some dialects, including southern, may pronounce this word with a small cap I as in, pin, fin, win, and sin. The difference again is with the vowel. Epsilon is a front, mid, and lax vowel. Whereas small cap I is a front, high, and lax vowel. Therefore the biggest difference between the two is tongue height. When one pronounces “pin” the tongue is higher than when one pronounces “pen”.

Lastly, “push” is commonly pronounced with upsilon, as in, cushy, could, foot, and boogie. However in some dialects, including some areas of Ohio, may pronounce this word as “poosh” with a lower case u, as in, moon, toon, boot, and dune. The difference between the pronunciations is with the vowel. Upsilon is a back, high, rounded and lax vowel. Lower case u is a back, high, rounded and tense vowel. Upon first glance, the only difference is that one is lax and one is tense. However, lower case u is slightly higher than upsilon. Therefore, when one pronounces “push” the tongue is slightly lower than when one pronounces “poosh”

In the instance of the word “hill” coming out as “heel” at times, may be due to assimilation. For example, “I saw him ((“heem”)) down the hill ((“heel”)). Or my favorite, “steel meal” rather than “steel mill”.

Running head: LINGUISTICS 1 Linguistics:Name:Institution: LINGUISTICS 2 The three words are: cloth, cure and lead:Many people pronounce cloth with a small cap O, as in, cough, long, and gone. At…

 

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write my assignment 7455

ACF/PACF plots of both the sample and the r

I can’t upload the text but I can say that the time series of interest is the NASDAQ composite index which Figure 1 shows the raw (IXIC) and the first differenced (dIXIC) data together with the estimated autocorrelation and partial autocorrelation functions. An ARIMA(2,1,1) model has been fitted.

FIGURE 1:

FIGURE 2:

FIGURE 3:

My problems are: which model can I suggest that can improve the results?

What are the information that can give me the ACF plot of the residuals? What about the standardized residuals, the p-values and the squared residuals? (FIGURE 2 and 3)

Basically, what is the difference from consulting the ACF plot of the sample data vs. the ACF of the residuals? Do they give different information?

  • Attachment 1
  • Attachment 2
  • Attachment 3

 

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