Question: Selecting samples from populations. Grafstrm and Schelin (2014) conducted a study evaluating the selection of samples from populations. They identified that the main goal [of

Selecting samples from populations. Grafström and Schelin (2014) conducted a study evaluating the selection of samples from populations. They identified that “the main goal [of selecting samples] is to select a sample so that various parameters can be estimated with good precision” (Grafström & Schelin, 2014, p. 277).

1. What does a parameter describe?

2. What are the characteristics in a sample called that are used to estimate the various parameters that the authors refer to?

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