EC 245 - Problem Set 2

Name

1. The data set “Price” collected data on over 400 housing transactions in Jacksonville. The city is separated into five distinct wards that describe the location of the house, Price measures the sales price of the house, Sqft measures the size of the house in square feet, and quality rates the condition of the house.

1. Describe the entities on which the data are collected for this study. Does this represent a population or a sample of houses in Jacksonville?

• The elements for this data set are the houses
• This is a sample of houses in Jacksonville

2. Characterize each variable in the data set as categorical (qualitative) or quantitative. If the variable is categorical determine if it is nominal or ordinal. If the variable is quantitative then determine if it is discrete or continuous.

• Ward - Categorical Nominal

• Price - Quantitative Continuous

• Sqft - Quantitative Continuous

• Quality - Categorical Ordinal

  3. Create a percent frequency table for the variable Wards and include it in this document. What percentage of the observations are from ward 3? Is each ward represented equally? Explain your answer.

Ward	Ward_Count	Percent
Ward1	42	9.6
Ward2	106	24.1
Ward3	28	6.4
Ward4	171	39.0
Ward5	92	21.0

Ward 3 includes 6.4% of houses from the sample. Each ward is not represented equally. Ward 4 is represented the most with 39% and Ward 3 is represented with the fewest houses.

4. Create a bar plot for the variable Wards and express as a percent and include in this document. Add appropriate labels to the chart.