1. Pg 206 Satisfaction A recent Gallup Poll asked a random sample of 1025 adults, "In general, are you satisfied or dissatisfied with the way things are going in the United States at this time?" In all, 25% said that they were satisfied. The dotplot shows the proportion who said they were satisfied in each of 500 random samples of size 1025 from a population where 25% are satisfied. 우 0.2 il 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 Simulated sample proportion who said satisfied Distribution of simulated proportion # samples 500 mean 0.25 SD 0.014 (a) Use the results of the simulation to approximate the margin of error for the estimate of the proportion of undergrads at the large university who would go to the professor. (b) Interpret the margin of error.
1. Pg 206 Satisfaction A recent Gallup Poll asked a random sample of 1025 adults, "In general, are you satisfied or dissatisfied with the way things are going in the United States at this time?" In all, 25% said that they were satisfied. The dotplot shows the proportion who said they were satisfied in each of 500 random samples of size 1025 from a population where 25% are satisfied. 우 0.2 il 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 Simulated sample proportion who said satisfied Distribution of simulated proportion # samples 500 mean 0.25 SD 0.014 (a) Use the results of the simulation to approximate the margin of error for the estimate of the proportion of undergrads at the large university who would go to the professor. (b) Interpret the margin of error.
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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pg 206
Satisfaction A recent Gallup Poll asked a random sample of 1025 adults,
"In general, are you satisfied or dissatisfied with the way things are going
in the United States at this time?" In all, 25% said that they were satisfied.
The dotplot shows the proportion who said they were satisfied in each of
500 random samples of size 1025 from a population where 25% are
satisfied.
0.2
0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29
Simulated sample proportion who said satisfied
Distribution of simulated proportion
# samples
500
mean
0.25
SD
0.014
(a) Use the results of the simulation to approximate the margin of error for the
estimate of the proportion of undergrads at the large university who would
go to the professor.
(b) Interpret the margin of error.
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