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What is the purpose of sampling from a population?
What is the purpose of sampling from a population?
- To ensure accurate representation of the entire population
- To save time and cost in data collection (correct)
- To avoid the destructive nature of some tests
- To eliminate sampling error
What is a systematic sample?
What is a systematic sample?
- A random starting point is selected, and then every kth item thereafter is selected for the sample (correct)
- A sample where individuals are chosen based on personal judgment
- All members of the population have the same chance of being selected for the sample
- The population is divided into several groups, called strata, and then a random sample is selected from each stratum
What characterizes a simple random sample?
What characterizes a simple random sample?
- A random starting point is selected, and then every kth item thereafter is selected for the sample
- The population is divided into several groups, called strata, and then a random sample is selected from each stratum
- All members of the population have the same chance of being selected for the sample (correct)
- A sample where individuals are chosen based on personal judgment
What does the central limit theorem apply to?
What does the central limit theorem apply to?
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Why would contacting the whole population be time consuming?
Why would contacting the whole population be time consuming?
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