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United States (325,389)
Statistics (75)
STAT 301 (55)
Lecture

Determining sample size

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Department
Statistics
Course
STAT 301
Professor
Brett Hunter
Semester
Fall

Description
23 September Determining Sample Size Let B be the bound on the error of estimation – another name for the margin of error So b = critical value x standard error Often a researcher wants to achieve a certain bound on the error. How do we do this? Determine the desired confidence level Estimate population variance (square of S.E.) Determine required sample size 3 factors that determine n Confidence level Maximum allowable error (B) Variation in population We find the minimum sample size required for each of the desired values (that determine n) Determi
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