In the world population, 81.2% of all people have dark brown or black hair, 10.3% have brown hair, 6.3% have blond hair and 2.2% have red, gray, or white hair. A researcher wants to see if the distribution of hair color is different for the residents of Nashville. The table below shows the results of a random sample of 568 residents in Nashville. What can be concluded at the si
In the world population, 81.2% of all people have dark brown or black hair, 10.3% have brown hair, 6.3% have blond hair and 2.2% have red, gray, or white hair. A researcher wants to see if the distribution of hair color is different for the residents of Nashville. The table below shows the results of a random sample of 568 residents in Nashville. What can be concluded at the si
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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100%
In the world population, 81.2% of all people have dark brown or black hair, 10.3% have brown hair, 6.3% have blond hair and 2.2% have red, gray, or white hair. A researcher wants to see if the distribution of hair color is different for the residents of Nashville. The table below shows the results of a random sample of 568 residents in Nashville. What can be concluded at the significant level of a = 0.01.

Transcribed Image Text:Your friend Courtney helped you with the null and alternative hypotheses...
Ho: The distributions of hair colors are the same between the general population and the residents of
Nashville.
H₁: The distributions of hair colors are NOT the same between the general population and the residents of
Nashville.
a. The observed frequencies are recorded below. Fill in the expected value, round answers to at least 4
decimal places.
Hair Color
Dark Brown or Black
Brown
Blonde
Red, Gray, White or Other
b. The degree of freedom =
c. The test-statistic for this data
d. The p-value for this sample
=
=
Observed
462
53
32
21
Expected
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