Surveys and Sampling Essay Example for Free

Surveys and Sampling EssayA. Identify the universe of discourse and variables.Population is the whole group of Richmond buyers interested to buy a house. Variables are location, price, bedrooms, bathrooms, sq.ft, and realtorB. Identify variables as categorical or numerical.* Location is categorical variable* Price is quantitative variable* Bedrooms are quantitative variable* Baths are quantitative variable* Sq.Ft is quantitative variable* Realtor is categorical variableC. What are several(prenominal) possible population parameters of interest? The parameter in this case is the 182 listing in Richmond, some opposite options to be considered are average house price ($310,381), house size, how many bedrooms and bathrooms, location of the house, who is it listed by and the metropolis zone. D. What are some possible sample statistics that could be guessd from this data? It is not necessary to calculate the statistics, just identify them. Average price for houses based on the coun ty location, average household income, preferable peculiarity and taste of the house buyersE. What is the sampling frame for the sample?The sampling frame is randomly selected from the single-dwelling properties for sale in the Greater Richmond area shown on the website realestate.aol.com.F. What is the sampling design?Systematic Random sampling (SRS)G. atomic number 18 there any sources of bias in the sample?Yes based on the data we have the pedagogy of the bias source is over charged.H. If we had decided to use a Stratified Sampling design, what would be eliminate strata?We can collect the sample by the process of dividing houses of the population in Richmond area into homogenized subgroups before sampling then select a random selection within each bed then combine the result.I. Are there other factors not shown in the data set that whitethorn affect the price of a house?Land size, school zone, amenities, house features (garage, basement, pool, etc..)