Sample Size Determination. Everything You Ever Wanted to Know About Sampling Distributions--And More!. Sampling Distribution. A frequency distribution of all the means obtained from all the samples of a given size Example: $$ spent on CD’s at Best Buy Daffy $34.00 Donald $72.00
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Everything You Ever Wanted to Know About Sampling Distributions--And More!
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Expected 3 4 5 0 1
square root of the sample size
As the samples size gets bigger, the standard error gets __________
n= H2 * s2
z= 1, 1.96, or 3
H= precision (+/-) H
s2= variance (or standard deviation squared)
n = H2 * (P) (Q)
Z= 1, 1.96, or 3
H= a percentage (e.g., 0.03--NOT 3)
P = initial estimate of the population proportion