Step 3: Find the p-value of the point estimate. First identify the observed and expected values. Observed and Expected Values Ethnicity Observed Values (O) Expected Values (E) White Black/African-American Asian, Pacific Islander Hispanic Now find the p-value. P(x ?v

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
Step 1: State the null and alternative hypotheses.
Ho: The ethnic distribution of AIDS cases in the county is the same as the county's ethnic distribution in general. ♥
Ha: The ethnic distribution of AIDS cases in the county is different from the county's ethnic distribution in general. v
Part 2 of 4
Step 2: Assuming the null hypothesis is true, determine the features of the distribution used
to perform the goodness-of-fit test.
To perform a goodness-of-fit test for this problem, use a chi-square
distribution with
degrees of freedom.
Part 3 of 4
Step 3: Find the p-value of the point estimate.
First identify the observed and expected values.
Observed and Expected Values
Ethnicity
Observed Values (O) | Expected Values (E)
White
Black/African-American
Asian, Pacific Islander
Hispanic
Now find the p-value.
P(x ?
Transcribed Image Text:Step 1: State the null and alternative hypotheses. Ho: The ethnic distribution of AIDS cases in the county is the same as the county's ethnic distribution in general. ♥ Ha: The ethnic distribution of AIDS cases in the county is different from the county's ethnic distribution in general. v Part 2 of 4 Step 2: Assuming the null hypothesis is true, determine the features of the distribution used to perform the goodness-of-fit test. To perform a goodness-of-fit test for this problem, use a chi-square distribution with degrees of freedom. Part 3 of 4 Step 3: Find the p-value of the point estimate. First identify the observed and expected values. Observed and Expected Values Ethnicity Observed Values (O) | Expected Values (E) White Black/African-American Asian, Pacific Islander Hispanic Now find the p-value. P(x ?
Part 1 of 4
The percentage of each ethnic group in a certain county is as in the following table.
Ethnic Breakdown of County
Ethnicity
Percent of Total County Population
White
42.5%
Black/African-American
26.6%
Asian, Pacific Islander
3.4%
Hispanic
27.5%
There have been 5054 reported cases of AIDS in the county. The cumulative number of AIDS cases
reported for the county is broken down by ethnicity in the following table.
Number of AIDS cases in the county by ethnicity
Ethnicity
Number of AIDS cases
White
2078
Black/African-American
1386
Asian, Pacific Islander
163
Hispanic
1427
Perform a goodness-of-fit test with a 5% level of significance to determine whether the occurrence
of AIDS cases follows the distribution of ethnicities of the general population in the county.
Step 1: State the null and alternative hypotheses.
Ho: The ethnic distribution of AIDS cases in the county is the same as the county's ethnic distribution in general.
Ha: The ethnic distribution of AIDS cases in the county is different from the county's ethnic distribution in general. v
Part 2 of 4
Step 2: Assuming the null hynothesis is true determine the features of the distribution used
Transcribed Image Text:Part 1 of 4 The percentage of each ethnic group in a certain county is as in the following table. Ethnic Breakdown of County Ethnicity Percent of Total County Population White 42.5% Black/African-American 26.6% Asian, Pacific Islander 3.4% Hispanic 27.5% There have been 5054 reported cases of AIDS in the county. The cumulative number of AIDS cases reported for the county is broken down by ethnicity in the following table. Number of AIDS cases in the county by ethnicity Ethnicity Number of AIDS cases White 2078 Black/African-American 1386 Asian, Pacific Islander 163 Hispanic 1427 Perform a goodness-of-fit test with a 5% level of significance to determine whether the occurrence of AIDS cases follows the distribution of ethnicities of the general population in the county. Step 1: State the null and alternative hypotheses. Ho: The ethnic distribution of AIDS cases in the county is the same as the county's ethnic distribution in general. Ha: The ethnic distribution of AIDS cases in the county is different from the county's ethnic distribution in general. v Part 2 of 4 Step 2: Assuming the null hynothesis is true determine the features of the distribution used
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
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