**Sample Size Determination for Estimating Proportion of Adults with High-Speed Internet Access**A researcher is interested in estimating the proportion of adults who have high-speed Internet access. The study aims to determine the appropriate sample size required to ensure that the estimate is within 0.04 (or 4%) of the true proportion with 95% confidence. The sample size needed depends on whether previous estimates are used:(a) **Using a Previous Estimate of 0.34** - Calculate the sample size assuming a previous estimate of 34% for the population proportion. Round the calculated sample size up to the nearest integer.(b) **Without Using Any Prior Estimates** - Determine the sample size when no prior estimates are available for the population proportion.For detailed calculations, click on the icon to view the table of critical values:[Book Icon: Click to view the table of critical values.]Answer for part (a): (a) n = [Input field: Round up to the nearest integer.]

(a) At a 95% confidence level, the z value is 1.96 which can be obtained by using the standard…

A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample shoul if (a) she uses a previous estimate of 0.34? (b) she does not use any prior estimates? Click the icon to view the table of critical values. (a) n = O (Round up to the nearest integer.)

A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample shoul if (a) she uses a previous estimate of 0.34? (b) she does not use any prior estimates? Click the icon to view the table of critical values. (a) n = O (Round up to the nearest integer.)

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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**Sample Size Determination for Estimating Proportion of Adults with High-Speed Internet Access**

A researcher is interested in estimating the proportion of adults who have high-speed Internet access. The study aims to determine the appropriate sample size required to ensure that the estimate is within 0.04 (or 4%) of the true proportion with 95% confidence. The sample size needed depends on whether previous estimates are used:

(a) **Using a Previous Estimate of 0.34**
- Calculate the sample size assuming a previous estimate of 34% for the population proportion. Round the calculated sample size up to the nearest integer.

(b) **Without Using Any Prior Estimates**
- Determine the sample size when no prior estimates are available for the population proportion.

For detailed calculations, click on the icon to view the table of critical values:

[Book Icon: Click to view the table of critical values.]

Answer for part (a):
(a) n = [Input field: Round up to the nearest integer.]

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