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.)

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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.]
Transcribed Image Text:**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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