استاتا 73531 /

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شرح پروژه

#کد_پروژه: 73531

موضوع: پروژه استاتا /

من یک کار کلاسی برای استاتا داشتم؛ میخواستم بدونم شما انجام میدید؟ 

داده ها و سوالات را خدمت شما برای بررسی ارسال میکنم؛

من حداکثر ۵ روز فرصت دارم و حتی ۵ روز و اندی هم فرصت ندارم؛ در واقع جمعه شب باید کار را برای استادم ارسال کنم. هر چه کار زودتر به دستم برسد بهتر است و کیفیت و درستی کار خیلی برام حیاتی است. 

لطفا بررسی نمایید و هزینه و زمان ارسال را بفرمایید. 10. Modify Model 1 by using the logarithmic term (log term) of the interval level independent variable (that you selected in Question 9). This modified model is Model 3. Subsequently, display the visualized logarithmic effect below and interpret the logarithmic effect with a short paragraph.

11. Compare Models 1, 2, and 3 to select the one with the best fit for the dataset. Then create a journal-format table of the model results with the following information: coefficients in one column, standard errors or robust standard errors in parentheses, significance level indicated by asterisks, and model fit statistics (R square, global F score and p value, and sample size) in bottom rows.

12. Please briefly report your major findings from the results you presented in Question 11.

13. Please modify Model 1 by adding an interaction term of an interval level independent variable and a dummy variable. This modified model is Model 4. Then display the visualized interaction effect below and interpret the interaction effect with a short paragraph.

14. Please modify Model 1 by adding an interaction term of two interval level independent variables. This modified model is Model 5. Then display the visualized interaction effect below and interpret the interaction effect with a short paragraph.

15. (Extra credit question, worth 2 points) Please further modify the model by incorporating the 2 interaction terms that you performed in Questions 14 and 15. This model is Model 6. Then compare Models 4, 5, and 6 to select the one with the best fit for the dataset. Subsequently, create a journal-format table and report major findings from the model results.

Faezeh Kh, [4/8/2024 9:09 AM]

سلام من سوالات را کامل نفرستاده بودم: سوالات ۱۰ تا پانزده رو فقط فرستاده بودم. 

الان باقی سوالات هم میفرستم

Faezeh Kh, [4/8/2024 9:09 AM]

Guidelines

You need to acquire a survey dataset containing a minimum of 100 observations, with variables measured at various levels, for this assignment. Utilize this dataset in Stata to conduct a research project that addresses your research question and tests your hypotheses. The empirical model should be OLS linear regression, with the outcome variable measured at the interval level, at least 2 independent variables measured at the interval, and at least one independent variable is dichotomous one (the minimum number of your independent variables is 3). You may use the dataset that was utilized in your Assignment 1 and/or 2.

Please address each of the following questions using a Stata dataset, a Stata syntax file (do file), and the output (log file) that results from analyzing the data with this syntax. Fill your answers to the questions below as if you were writing the corresponding paragraphs of the methodology section for your research manuscript. Please keep the questions in the answer sheet. You are required to submit your syntax (do file), output (log file), and the completed answer sheet to the Canvas system. 

You should read through all the questions below before you attempt to answer them. 

Questions

1. Please use a paragraph to briefly introduce your research question that you try to address in this empirical research, and briefly present your theoretical model with the dependent variable and major explanatory variables.

2. Describe the dataset you are using in terms of data sources, data collection (including when, where, who, whom, and how), final sample size, and other relevant information. 

3. Please report how your sample represents the target population of observations. You may describe the sampling approach (e.g., random sampling) to justify the sample representation, and/or use statistics of demographic variables to compare the sample and population. If the sample representation is limited, please specify which group of observations is under-represented and which group is over-represented.

4. How is each of the variables in your model measured? For categorical level variables, please specify the levels or categories as well as the assigned values in the report. For interval level variables, please include measurement units. If a variable is constructed by multiple survey items, please report the details of its constructs and reliability of the measurement. 

5. Please discuss the limitations of your data, including the data collection methods, sample, measurement accuracy, and absence of desired variables.

6. Create a table of descriptive statistics for your variables, using only the final sample of this research. If they are interval level variables, present their sample means, standard deviations, minimum, and maximum. If they are categorical variables, report the frequency distribution with percent. Please make the table neat and nice as if you did it for a journal article. DO NOT copy and paste from Stata outputs. You don’t need to interpret the table here, but you should make sure that all the values appear reasonable.

7. Please present a histogram to demonstrate whether the dependent variable follows a normal distribution or resembles one. 

8. Please use the result of Question 7 while considering the values of the dependent variable to assess whether or not the natural logarithm term should be used to perform the OLS model. In this model, at least two independent variables are measured at the interval level, and at least one independent variable is dichotomous one. This is Model 1. (You just perform the model in the do file and log file, no need to present the results here.)

9. Please modify Model 1 by adding a squared term (quadratic term) of an interval level independent variable that you choose. This modified model is Model 2. Subsequently, display the visualized quadratic effect below and interpret the quadratic effect with a short paragraph (50-150 words).  

این پروژه شامل 4 فایل مهم است، لطفا قبل از ارسال پیشنهاد حتما نسبت به بررسی این فایل اقدام فرمایید.

مهارت ها و تخصص های مورد نیاز

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