Mathematics, 01.11.2019 07:31, struckedblazing

Aresearcher wishes to estimate, with 9090% confidence, the proportion of adults who have high-speed internet access. her estimate must be accurate within 55% of the true proportion. a) find the minimum sample size needed, using a prior study that found that 2828% of the respondents said they have high-speed internet access. b) no preliminary estimate is available. find the minimum sample size needed.

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Aresearcher wishes to estimate, with 9090% confidence, the proportion of adults who have high-speed...