Computing the minimum sample size

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Reference no: EM1320406

Q1) Researcher wants to estimate , with 90% confidence, percentage of adults who support abolishing penny. His evaluation should be correct within 3% of true proportion.

a) Determine minimum sample size needed, using a previous study that found that 34% of the respondents said they support abolishing penny

b) No preliminary estimate is available. Determine minimum sample size needed.

b) Compute the minimum sample size required assuming that no prior information is avaiable?

Reference no: EM1320406

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