A researcher wishes to estimate, with 90% confidence, the population proportion of adults who support labeling legislation for genetically modified organisms (GMOS). Her estimate must be accurate within 3% 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 72% of the respondents said they support labeling legislation for GMOS.(c) Compare the results from parts (a) and (b).(a) What is the minimum sample size needed assuming that no prior information is available?n=(Round up to the nearest whole number as needed.)(b) What is the minimum sample size needed using a prior study that found that 72% of the respondents support labeling legislation?n=(Round up to the nearest whole number as needed.)(c) How do the results from (a) and (b) compare?O A. Having an estimate of the population proportion reduces the minimum sample size needed.O B. Having an estimate of the population proportion has no effect on the minimum sample size needed.OC. Having an estimate of the population proportion raises the minimum sample size needed.

The random variable labeling legislation follows binomial distribution. The margin of error is 0.03.…

A researcher wishes to estimate, with 90% confidence, the population proportion of adults who support labeling legislation for genetically modified organisms (GMOS). Her estimate must be accurate within 3% of the true proportion. (a) No preliminary estimate (b) Find the minimum sample size needed, using a prior study that found that 72% of the respondents said they support labeling legislation for GMOS. (c) Compare the results from parts (a) and (b). available. Find the minimum sample size needed. (a) What is the minimum sample size needed assuming that no prior information available? n= Round up to the nearest whole number as needed.) (b) What is the minimum sample size needed using a prior study that found that 72% of the respondents support labeling legislation? n=O(Round up to the nearest whole number as needed.) (c) How do the results from (a) and (b) compare? O A. Having an estimate of the population proportion reduces the minimum sample size needed. O B. Having an estimate of the population proportion has no effect on the minimum sample size needed. OC. Having an estimate of the population proportion raises the minimum sample size needed.

A researcher wishes to estimate, with 90% confidence, the population proportion of adults who support labeling legislation for genetically modified organisms (GMOS). Her estimate must be accurate within 3% of the true proportion. (a) No preliminary estimate (b) Find the minimum sample size needed, using a prior study that found that 72% of the respondents said they support labeling legislation for GMOS. (c) Compare the results from parts (a) and (b). available. Find the minimum sample size needed. (a) What is the minimum sample size needed assuming that no prior information available? n= Round up to the nearest whole number as needed.) (b) What is the minimum sample size needed using a prior study that found that 72% of the respondents support labeling legislation? n=O(Round up to the nearest whole number as needed.) (c) How do the results from (a) and (b) compare? O A. Having an estimate of the population proportion reduces the minimum sample size needed. O B. Having an estimate of the population proportion has no effect on the minimum sample size needed. OC. Having an estimate of the population proportion raises the minimum sample size needed.

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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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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A researcher wishes to estimate, with 90% confidence, the population proportion of adults who support labeling legislation for genetically modified organisms (GMOS). Her estimate must be accurate within 3% 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 72% of the respondents said they support labeling legislation for GMOS.
(c) Compare the results from parts (a) and (b).
(a) What is the minimum sample size needed assuming that no prior information is available?
n=(Round up to the nearest whole number as needed.)
(b) What is the minimum sample size needed using a prior study that found that 72% of the respondents support labeling legislation?
n=(Round up to the nearest whole number as needed.)
(c) How do the results from (a) and (b) compare?
O A. Having an estimate of the population proportion reduces the minimum sample size needed.
O B. Having an estimate of the population proportion has no effect on the minimum sample size needed.
OC. Having an estimate of the population proportion raises the minimum sample size needed.

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