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how to determine sample size from a given population. To carry out this calculation set the margin of error e or the maximum distance desired for the sample estimate to deviate from the true value. The sample size is the number of people who the statistician examines.
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What does that look like in practice. The total number of people in the group you are trying to study. You can calculate the sample size in five simple steps.
Consider your sample size variables 1.
If you were taking a random sample of people across the US then your population size would be about 317 million. N 1962pq d2 Where n. In the example the statistician examined 40 students so the sample size is 40 people. To carry out this calculation set the margin of error e or the maximum distance desired for the sample estimate to deviate from the true value.
