1. The first example on page 4 of chapter 6 notes asks for the standard deviation for the number of people in a sample of n = 80 who are expected to prefer the color yellow. Then this same sample asks for the standard deviation for the proportion of people who are expected to prefer the color yellow. Which option includes the two correct answers for these two standard deviations? s = 0.700 for the count out of 80 people and s = 5.60 for the proportion. s = 2.282 for the count out of 80 people and s = 0.0285 for the proportion. s = 0.0285 for the count out of 80 people and s = 2.282 for the proportion. s = 5.60 for the count out of 80 people and s = 0.0700 for the proportion.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

Hi, I added a picture of the notes in reference to the question. I appreciate the help, thanks

1. The first example on page 4 of chapter 6 notes asks for the standard
deviation for the number of people in a sample of n = 80 who are
expected to prefer the color yellow. Then this same sample asks for the
standard deviation for the proportion of people who are expected to
prefer the color yellow. Which option includes the two correct answers
for these two standard deviations?
s = 0.700 for the count out of 80 people and s= 5.60 for the proportion.
s = 2.282 for the count out of 80 people and s = 0.0285 for the proportion.
s = 0.0285 for the count out of 80 people and s = 2.282 for the proportion.
s = 5.60 for the count out of 80 people and s = 0.0700 for the proportion.
Transcribed Image Text:1. The first example on page 4 of chapter 6 notes asks for the standard deviation for the number of people in a sample of n = 80 who are expected to prefer the color yellow. Then this same sample asks for the standard deviation for the proportion of people who are expected to prefer the color yellow. Which option includes the two correct answers for these two standard deviations? s = 0.700 for the count out of 80 people and s= 5.60 for the proportion. s = 2.282 for the count out of 80 people and s = 0.0285 for the proportion. s = 0.0285 for the count out of 80 people and s = 2.282 for the proportion. s = 5.60 for the count out of 80 people and s = 0.0700 for the proportion.
Example
In the world population, 7% of all people identify yellow as their favorite color.
(a) In a sample of n = 80 people, find the expected number of people who will identify
yellow as their favorite color and then find the predicted standard deviation for the
number of people, and then the proportion of people, who will identify yellow as
their favorite color for all samples of size n = 80.
(This is the proportion of a sample, so we will use the CLT.)
(b) Find the probability that more than 8 people would identify yellow as their favorite
color out of a group of 80 people.
Transcribed Image Text:Example In the world population, 7% of all people identify yellow as their favorite color. (a) In a sample of n = 80 people, find the expected number of people who will identify yellow as their favorite color and then find the predicted standard deviation for the number of people, and then the proportion of people, who will identify yellow as their favorite color for all samples of size n = 80. (This is the proportion of a sample, so we will use the CLT.) (b) Find the probability that more than 8 people would identify yellow as their favorite color out of a group of 80 people.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman