2. Reporting on cheats What proportion of students are willing to report cheating by other students? A student project put this question to an SRS of 172 undergraduates at a large universi- ty: "You witness two students cheating on a quiz. Do you go to the professor?" Only 11% answered "Yes." The dotplot shows the proportion who would go to the professor in each of 1000 random samples of size 172 from a population where 11% would go to the professor.¹ .17 0 0.05 0.1 0.15 0.2 0.25 Simulated sample proportion who would say "Yes" 0. ● mean 0.11 Distribution of simulated proportion # samples 1000 SD 0.024 a. Use the results of the simulation to approximate the margin of error for Gallup's estimate of the proportion of U.S. adults who were satisfied with the way things were going in the United States at the time of the poll. b. Interpret the margin of error.
2. Reporting on cheats What proportion of students are willing to report cheating by other students? A student project put this question to an SRS of 172 undergraduates at a large universi- ty: "You witness two students cheating on a quiz. Do you go to the professor?" Only 11% answered "Yes." The dotplot shows the proportion who would go to the professor in each of 1000 random samples of size 172 from a population where 11% would go to the professor.¹ .17 0 0.05 0.1 0.15 0.2 0.25 Simulated sample proportion who would say "Yes" 0. ● mean 0.11 Distribution of simulated proportion # samples 1000 SD 0.024 a. Use the results of the simulation to approximate the margin of error for Gallup's estimate of the proportion of U.S. adults who were satisfied with the way things were going in the United States at the time of the poll. b. Interpret the margin of error.
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Question
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Targv umrvony whu woulu go to the pronoDDU
b. Interpret the margin of error.
0
0.05
0.1
Reporting on cheats What proportion of students are willing
to report cheating by other students? A student project put this
question to an SRS of 172 undergraduates at a large universi-
ty: "You witness two students cheating on a quiz. Do you go
to the professor?" Only 11% answered "Yes." The dotplot
shows the proportion who would go to the professor in each
of 1000 random samples of size 172 from a population where
11% would go to the professor.
17
ili..
SUI..
0.15
0.2
0.25
Simulated sample proportion who would say "Yes"
Distribution of simulated proportion
# samples
1000
mean
0.11
(
39%
SD
0.024
₁ X
a. Use the results of the simulation to approximate the margin of
error for Gallup's estimate of the proportion of U.S. adults
who were satisfied with the way things were going in the
United States at the time of the poll.
b. Interpret the margin of error.
Twittering away The Pew Internet and American Life
Project asked a random sample of 2253 ILS adults "Do you"
Transcribed Image Text:<
2.
>
VitalSource
Targv umrvony whu woulu go to the pronoDDU
b. Interpret the margin of error.
0
0.05
0.1
Reporting on cheats What proportion of students are willing
to report cheating by other students? A student project put this
question to an SRS of 172 undergraduates at a large universi-
ty: "You witness two students cheating on a quiz. Do you go
to the professor?" Only 11% answered "Yes." The dotplot
shows the proportion who would go to the professor in each
of 1000 random samples of size 172 from a population where
11% would go to the professor.
17
ili..
SUI..
0.15
0.2
0.25
Simulated sample proportion who would say "Yes"
Distribution of simulated proportion
# samples
1000
mean
0.11
(
39%
SD
0.024
₁ X
a. Use the results of the simulation to approximate the margin of
error for Gallup's estimate of the proportion of U.S. adults
who were satisfied with the way things were going in the
United States at the time of the poll.
b. Interpret the margin of error.
Twittering away The Pew Internet and American Life
Project asked a random sample of 2253 ILS adults "Do you
Expert Solution
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Step 1
Given Information:
Consider the results of the simulation:
Distribution of simulated proportion | ||
Samples | Mean | SD |
1000 | 0.11 | 0.024 |
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