Random samples of 50 items were drawn with replacement from a finite population. If (X-X)² = 700, the standard error of the mean would be:
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How to Choose Sample Size for a Simple Random Sample
- Specify the desired margin of error ME. This is your measure of precision.
- Specify alpha. ...
- Find the critical standard score z. ...
- Unless the population size is very large relative to sample size (e.g., 20 times larger), you need to specify the size of the population (N).
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Random samples of 50 items were drawn with replacement from a finite population. If (X-X)² = 700, the standard error of the mean would be:
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