17. Congress You wish to estimate, with 95% confidence, the populatio proportion of U.S. adults who think Congress is doing a good or exceller job. Your estimate must be accurate within 4% of the population proportion (a) No preliminary estimate is available. Find the minimum sample siz needed. (b) Find the minimum sample size needed, using a prior survey that fourd that 25% of U.S. adults think Congress is doing a good or excelle job. (Source: Rasmussen Reporns) (c) Compare the results from parts (a) and (b).

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You wish to estimate with 95% confidence the population portion of U.S. adults who think Congress is doing a good or excellent job. Your estimate must be accurate within 4% of the population  proportion 

A) No preliminary estimate is available. Find minimum sample size

B) find the minimum sample size needed using a prior survey that found 25% of U.S. adults think Congress is doing a good or excellent job

C) compare part A and B

17. Congress You wish to estimate, with 95% confidence, the populatio
proportion of U.S. adults who think Congress is doing a good or exceller
job. Your estimate must be accurate within 4% of the population proportion
(a) No preliminary estimate is available. Find the minimum sample siz
needed.
(b) Find the minimum sample size needed, using a prior survey that fourd
that 25% of U.S. adults think Congress is doing a good or excelle
job. (Source: Rasmussen Reporns)
(c) Compare the results from parts (a) and (b).
Transcribed Image Text:17. Congress You wish to estimate, with 95% confidence, the populatio proportion of U.S. adults who think Congress is doing a good or exceller job. Your estimate must be accurate within 4% of the population proportion (a) No preliminary estimate is available. Find the minimum sample siz needed. (b) Find the minimum sample size needed, using a prior survey that fourd that 25% of U.S. adults think Congress is doing a good or excelle job. (Source: Rasmussen Reporns) (c) Compare the results from parts (a) and (b).
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