SAMPLING Speech or Presentation Example | Topics and Well Written Essays - 500 words

SAMPLING - Speech or Presentation Example Simple random sample? Explain. This sampling plan results in a random sample, but not a simple random sample. The sample collected is a random sample because every school has the same chance of being selected. The sample is not a simple random sample because no teacher will be selected from schools that were not included in the ten schools selected. In other words, some schools have 100% representation in the sample while some schools have no representation at all. 4. A polling company obtains an alphabetical list of names of voters in a precinct. They select every 20th person from the list until a sample of 100 is obtained. They then call these 100 people. Does this sampling plan result in a random sample? Simple random sample? Explain. This sampling plan results in a random sample, but not a simple random sample. This is a case of systematic random sampling. This is a random sample because each person on the list has an equal chance of being selected. This is not a simple random sample because once the first person is selected, the rest of the selections are already determined. 5. The personnel manager at a company wants to investigate job satisfaction among the female employees. One evening after a meeting she talks to all 30 female employees who attended the meeting. Does this sampling plan result in a random sample? Simple random sample? Explain. No, this sampling plan does not result in a random sample and therefore not a simple random sample. This is a case of convenience sampling, as the personal manager only talks to all 30 female employees who attended the meeting that is whoever happens to be