Is there an association between hair color and body type? The table below shows the results of a researcher's observations of randomly selected people. Frequencies of Hair Colors for Various Body Types   Blonde Brunette Red Head Short and Slender 72 95 51 Short and Pudgy 91 115 79 Tall and Slender 55 107 69 Tall and Heavy 51 116 77  What can be concluded at the αα = 0.05 significance level? What is the correct statistical test to use? Independence Paired t-test Goodness-of-Fit Homogeneity What are the null and alternative hypotheses? H0:H0:  The distribution of hair color is the same for each body type. Hair color and body type are dependent. The distribution of hair color is not the same for each body type. Hair color and body type are independent. H1:H1:  The distribution of hair color is the same for each body type. Hair color and body type are independent. The distribution of hair color is not the same for each body type. Hair color and body type are dependent. The test-statistic for this data =  (Please show your answer to three decimal places.)

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
Topic Video
Question

 Is there an association between hair color and body type? The table below shows the results of a researcher's observations of randomly selected people.

Frequencies of Hair Colors for Various Body Types

  Blonde Brunette Red Head
Short and Slender 72 95 51
Short and Pudgy 91 115 79
Tall and Slender 55 107 69
Tall and Heavy 51 116 77

 What can be concluded at the αα = 0.05 significance level?

  1. What is the correct statistical test to use?
    • Independence
    • Paired t-test
    • Goodness-of-Fit
    • Homogeneity
  2. What are the null and alternative hypotheses?
    H0:H0: 
    • The distribution of hair color is the same for each body type.
    • Hair color and body type are dependent.
    • The distribution of hair color is not the same for each body type.
    • Hair color and body type are independent.



    H1:H1: 
    • The distribution of hair color is the same for each body type.
    • Hair color and body type are independent.
    • The distribution of hair color is not the same for each body type.
    • Hair color and body type are dependent.
  3. The test-statistic for this data =  (Please show your answer to three decimal places.)

  4. The p-value for this sample = (Please show your answer to four decimal places.) 

  5. The p-value is Select an answer less than (or equal to) greater than  αα 

  6. Based on this, we should
    • fail to reject the null
    • reject the null
    • accept the null
  7. Thus, the final conclusion is...
    • There is insufficient evidence to conclude that the distribution of hair color is not the same for each body type.
    • There is sufficient evidence to conclude that hair color and body type are independent.
    • There is sufficient evidence to conclude that hair color and body type are dependent.
    • There is insufficient evidence to conclude that hair color and body type are dependent.
    • There is sufficient evidence to conclude that the distribution of hair color is not the same for each body type.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Proportions
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
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