Find the sample size needed to estimate the percentage of residents of one region of a country who are left-handed. Use a margin of error of one percentage point, and use a confidence level of 90%. Complete parts (a) through (c) below. ... a. Assume thatp and q are unknown. The sample size needed is 6765 (Round up to the nearest whole number as needed.) b. Assume that based on prior studies, about 8% of residents of the region are left-handed. The sample size needed is (Round up to the nearest whole number as needed.)

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Find the sample size needed to estimate the percentage of residents of one region of a country who
are left-handed. Use a margin of error of one percentage point, and use a confidence level of 90%.
Complete parts (a) through (c) below.
...
a. Assume that p and q are unknown.
The sample size needed is 6765
(Round up to the nearest whole number as needed.)
b. Assume that based on prior studies, about 8% of residents of the region are left-handed.
The sample size needed is
(Round up to the nearest whole number as needed.)
Transcribed Image Text:Find the sample size needed to estimate the percentage of residents of one region of a country who are left-handed. Use a margin of error of one percentage point, and use a confidence level of 90%. Complete parts (a) through (c) below. ... a. Assume that p and q are unknown. The sample size needed is 6765 (Round up to the nearest whole number as needed.) b. Assume that based on prior studies, about 8% of residents of the region are left-handed. The sample size needed is (Round up to the nearest whole number as needed.)
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