Discuss how the regional sample created is reflective of the national market. Compare and contrast your sample with the population using the National Statistics and Graphs document.

Generate a Representative Sample of the Data
- Select a region and generate a simple random sample of 30 from the data.
- Report the mean, median, and standard deviation of the median listing price and the median square foot variables.
Analyze Your Sample
- Discuss how the regional sample created is reflective of the national market.
  - Compare and contrast your sample with the population using the National Statistics and Graphs document.
- Explain how you have made sure that the sample is random.
  - Explain your methods to get a truly random sample.
Generate Scatterplot
- Create a scatterplot of the x and y variables noted above and include a trend line.
Observe patterns
- Answer the following questions based on the scatterplot:
  - Define x and y. Which variable is useful for making predictions?
  - Is there an association between x and y? Describe the association you see in the scatter plot.
  - What do you see as the shape (linear or nonlinear)?
  - If you had a 1,200 square foot house, based on the regression equation in the graph, what price would you choose to list at?
  - Do you see any potential outliers in the scatterplot?
    - Why do you think the outliers appeared in the scatterplot you generated?
    - What do they represent?