A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.02 with 95% confidence if (a) she uses a previous estimate of 0.32? (b) she does not use any prior estimates? E Click the icon to view the table of critical values. (a) n= (Round up to the nearest integer.) (b) n= (Round up to the nearest integer.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.02
with 95% confidence if
(a) she uses a previous estimate of 0.32?
(b) she does not use any prior estimates?
Click the icon to view the table of critical values.
(a) n=
(Round up to the nearest integer.)
(b) n=
(Round up to the nearest integer.)
Transcribed Image Text:A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.02 with 95% confidence if (a) she uses a previous estimate of 0.32? (b) she does not use any prior estimates? Click the icon to view the table of critical values. (a) n= (Round up to the nearest integer.) (b) n= (Round up to the nearest integer.)
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