Assignments to complete this week:
● Reading: Anderson et al. (14th ed.)
○ Chapter 15: Multiple regression
○ Chapter 18: Non-parametric methods
● Reading: Field (5th ed.)
○ Chapter 9: The linear model (regression)
○ Chapter 7: Non-parametric models
● CLA 2 due by Sunday at 11:59 p.m.
Comprehensive Learning Assessment 2 – CLO 1, CLO 2, CLO 3, CLO 5, CLO 8, CLO 9, CLO 11, CLO 12
This assessment has two parts, for both parts, explain your work in detail and provide in-text citations.
1. Choose an affluent community and retrieve information about single family home listings from a real estate website. Retrieve needed information and perform the following tasks.
a. Please construct the descriptive statistics of the data before data analysis entailed in the following.
b. Develop a regression model in which living area is one independent variable, lot size is the other independent variable, and home price is the dependent variable. State the hypotheses on the coefficients, justify formulation of these hypotheses, and interpret the results. Use ɑ = .05. Include all phases of assessment of the model and do not forget to check multicollinearity.
c. Now include dummy variables in the model to reflect the effect of having a pool, and the effect of view. Repeat the steps mentioned in parts (a) and (b) for this case. Descriptive statistics in this case should be categorized by the values of the dummy variable. How different the model becomes when you include the effect of having a pool and view?
d. Provide a detailed description of how adding the pool as dummy variable impacts coefficient of determination.
e. Choose hypothetical living area and lot size to find the expected value – predicted listing price with and without a pool. Comment on your results.
Seasonal data on the number of fatal lightings in the US is given in Table 16.
a. Formulate a two sided and a one-sided hypothesis on homogeneity of the median of the number of fatal lightings across the two seasons, and describe why Mann–Whitney–Wilcoxon (MWW) test is suitable for this purpose.
b. Provide descriptive statistics of the data as it pertains to this situation (graphical presentation is also required), test both hypotheses mentioned in part a, explain your work in detail, and interpret the result (to get critical values for testing the hypotheses please refer to users.stat.ufl.edu/~winner/tables/wilcoxonmannwhitney%5B1%5D.pdf).
Use ɑ = .05 in testing all hypotheses.
Table 16
Annual Data on Frequencies of Lightings in Spring and Summer
Year
Spring
Summer
2017
4
12
2016
9
28
2015
17
11
2014
8
17
2013
8
15
2012
5
22
2011
6
19
2010
11
17
2009
15
18
2008
12
15
*Please refer to the Grading Criteria for Comprehensive Learning Assessments (CLAs) in the University Policies for specific guidelines and expectations.
Comprehensive Learning Assessment (CLA 2) Presentation
In addition to your CLA2 report, please prepare a professional PowerPoint presentation summarizing your findings for CLA2. The presentation will consist of your major findings, analysis, and recommendations in a concise presentation of 18 slides (minimum). You should use content from your CLA2 report, part 1, as material for your PowerPoint presentation. An agenda, executive summary, and references slides should also be included. Please keep in mind that the university is moving towards a more digital footprint for our students. This means that your final CLA2 presentation may be recorded, so that you may include it in your “e-portfolio” (graduating students should have all of their CLA2 presentations on the cloud, in addition to student biography, resume, interests, and so forth). Students will present their PowerPoint during the last week of class in either the On-Campus Class Session or the online Virtual Class Session, as determined by the professor. Presentations should not exceed 18 minutes.
