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 five percentage points, and use a confidence level of 90%. Complete parts (a) through (c) below. Question content area bottom Part 1 a. Assume that p and q are unknown. The sample size needed is 269 269. (Round up to the nearest whole number as needed.) Part 2 b. Assume that based on prior studies, about 7% of residents of the region are left-handed. The sample size needed is 71 71. (Round up to the nearest whole number as needed.) Part 3 c. How do the results from parts (a) and (b) change if the entire country is used instead of the one region of that country? If the entire country is used instead of the one region of that country, the result from part (a) does not change and the result from part (b) does not change.
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 five percentage points, and use a confidence level of 90%. Complete parts (a) through (c) below. Question content area bottom Part 1 a. Assume that p and q are unknown. The sample size needed is 269 269. (Round up to the nearest whole number as needed.) Part 2 b. Assume that based on prior studies, about 7% of residents of the region are left-handed. The sample size needed is 71 71. (Round up to the nearest whole number as needed.) Part 3 c. How do the results from parts (a) and (b) change if the entire country is used instead of the one region of that country? If the entire country is used instead of the one region of that country, the result from part (a) does not change and the result from part (b) does not change.
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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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
five
percentage
points,
and use a confidence level of
90%.
Complete parts (a) through (c) below.Question content area bottom
Part 1
a. Assume that
p
and
q
are unknown.The sample size needed is
269
269.
(Round up to the nearest whole number as needed.)
Part 2
b. Assume that based on prior studies, about
7%
of residents of the region are left-handed.The sample size needed is
71
71.
(Round up to the nearest whole number as needed.)
Part 3
c. How do the results from parts (a) and (b) change if the entire country is used instead of the one region of that country?
If the entire country is used instead of the one region of that country, the result from part (a)
and the result from part (b)
does not change
does not change.
I am having a hard time finding B....
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