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October 29, 2023 at 9:10 PM A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must be accurate within 1% of the true proportion. (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 32 32% of the respondents said they think Congress is doing a good or excellent job. (c) Compare the results from parts (a) and (b). 1

October 29, 2023 at 9:10 PM A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must be accurate within 1% of the true proportion. (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 32 32% of the respondents said they think Congress is doing a good or excellent job. (c) Compare the results from parts (a) and (b). 1

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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... on... D.... on... ! 10 (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 32 I October 29, 2023 at 9:10 PM A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must be accurate within 1% of the true proportion. 32% of the respondents said they think Congress is doing a good or excellent job. (c) Compare the results from parts (a) and (b). 1 ((0 OCT 29 1343 10 20 A Q Search O Fin שב
Transcribed Image Text:... on... D.... on... ! 10 (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 32 I October 29, 2023 at 9:10 PM A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must be accurate within 1% of the true proportion. 32% of the respondents said they think Congress is doing a good or excellent job. (c) Compare the results from parts (a) and (b). 1 ((0 OCT 29 1343 10 20 A Q Search O Fin שב
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