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data-assignment-ASSIGNED.docx

Math 118

Technology Project

Chicago Rental Properties

**** ASSIGNED ****

Please download this file and the accompanying spreadsheet file

Edit these files with your own work and submit on Brightspace

Data Collection Method:

For this assignment, you will use a data set with 47 entries, one for each randomly selected property. The data is in an excel file attached to the assignment. The data were selected as follows:

1) Data was accessed on 4/7/2019 via search on apartments.com.

2) Over 500 search results were returned. The 47 selected properties were chosen so that any of the search results were equally likely to be included in the sample.

3) Data was filtered to include only properties with 2 bedrooms in zip code 60640

(Note that in the worked example, zip code 60612 was selected, which contains Malcolm X College and surrounding properties. Zip code 60640 is located on the north side of the city).

Questions:

Sampling Methods (5 pts):

1) From what population is this data a sample? What was the frame? (3 pts)

2) For what other populations might, or might not, this data be representative? (2 pts)

Visualizing the Data and Central Measures (8 pts):

3) Construct the frequency distribution table with seven classes (3 pts)

4) Construct the histogram for the frequency distribution table (1 pts)

a. Describe it as either flat, sloped, concentrated, skewed, or none of these (2 pts)

5) Calculate and interpret the mean and the median values (2 pts)

Measuring spread (7 pts):

6) Describe the maximum and minimum values (1 pts)

7) Calculate the first and third quartiles, and describe the data using these (3 pts)

8) Calculate the standard deviation (1 pt)

a. Describe the data using the empirical rule (2 pts)