Find the minimum smples size needed using a prior study

Reference no: EM13635587

A researcher wishes to estimate, with 95% confidence, the proportion of adults who have high speed internet access. Her estimatemust be 2% of the true proportion.

a- find the minimum smples size needed, using a prior study that found that 42% of the respondents said they have high speed internet access.

b- no preliminary estimate is available. find the minimum sample size needed.

Reference no: EM13635587

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