nyny2129
17.12.2019 •
Mathematics
Use the given data to find the minimum sample size required to estimate a population proportion or percentage. margin of error: seven percentage points, confidence level 95%, from a prior study,^p is estimated by the decimal equivalent of 42%n= (round to the nearest integer.)
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Ответ:
191
Step-by-step explanation:
Formula to find the minimum sample size required to estimate a population proportion or percentage:
, where = proportion estimated by prior study.
E= Margin of error.
z* = Critical z-value.
Given : Confidence level = 95%
Critical value for 95% confidence = z*=1.96
E= 7%= 0.07
Then,
Hence, the minimum sample size required=191
Ответ:
Step-by-step explanation: