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 0.04 with 95% confidence if a) she uses a previous estimate of 0.42? b) she does not use any prior estimates? ... a) n = (Round up to the nearest integer.) b) n = (Round up to the nearest integer)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 34PPS
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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 0.04 with 95% confidence if
a) she uses a previous estimate of 0.42?
b) she does not use any prior estimates?
TAN
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 0.04 with 95% confidence if a) she uses a previous estimate of 0.42? b) she does not use any prior estimates? TAN a) n = (Round up to the nearest integer.) b) n = (Round up to the nearest integer.)
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