The sample described is a simple random sample. This is indicated by the fact that the pollster obtained a complete list of all residential addresses in the town and then used a random number generator to select 150 addresses. Each address had an equal chance of being selected, which is the hallmark of a simple random sample. Furthermore, by interviewing all adults in each selected household, the pollster ensures that the sample includes a variety of perspectives from within those households.
Identify the kind of sample that is described.
A pollster obtains a list of all the residential addresses in a certain town, and uses a random number generator to choose 150 of them. The pollster visits each of the 150 households and interviews all the adults in each household about their television viewing habits.
3 answers
No, its not a simple random
I apologize for any confusion. Let's analyze it more closely:
The pollster starts with a complete list of residential addresses in the town and randomly selects 150 of them. However, the method of collecting data involves interviews with all adults in the selected households, which brings in another layer of sampling.
This method can be classified as a cluster sample, specifically a type of cluster sampling where households are the clusters. The entire household is treated as a cluster, and all adults within selected households are surveyed.
In summary, the sampling method is a cluster sampling method (with households as clusters) because the pollster takes entire households (clusters) rather than individual residents within those households. Thank you for your patience, and I'm glad to clarify!
1 answer