### Distribution of AIDS Cases in Santa Clara CountyThe number of AIDS cases reported for Santa Clara County, California is broken down by race in the table below. **Source:** "HIV/AIDS Epidemiology Santa Clara County," Santa Clara County Public Health Department, May 2011.| Race | Cases ||---------------------------|-------|| White | 2267 || Hispanic | 1182 || Black | 464 || Asian/Pacific Islander | 227 || **Total** | **4140** |---**Directions:** Conduct a chi-square test for goodness-of-fit to determine whether or not the occurrence of AIDS cases is consistent with the race distribution of Santa Clara County.1. **Choose the correct null and alternative hypotheses.** - $ H_0 $: The distribution of AIDS cases is different from the race distribution in Santa Clara County. - $ H_a $: The distribution of AIDS cases is consistent with the race distribution in Santa Clara County. - $ H_0 $: The distribution of AIDS cases is consistent with the race distribution in Santa Clara County. - $ H_a $: The distribution of AIDS cases is different from the race distribution in Santa Clara County.2. **Compute the test statistic.** The population distribution of Santa Clara County by race is provided in the table below. Use these percentages to compute the expected number of cases for each racial group. Round each of the expected counts to 2 decimal places. | Race | Proportion | Expected cases | |--------------------------|------------|----------------| | White | 0.455 | | | Hispanic | 0.252 | | | Black | 0.025 | | | Asian/Pacific Islander | 0.268 | | | **Total** | **1** | |### Instructions for Analysis:- Use the given proportions to calculate the expected cases for each racial group.- Fill in the "Expected cases" column by multiplying the total number of cases (4140) by each race's proportion.- Compare the observed and expected cases to conduct the chi-square test.This data provides insight into the distribution of AIDS cases across different racial groups in Santa Clara County, which can be critical for public health planning and interventions. ### Chi-Square Test for Proportions#### 2. Compute the Test StatisticThe population distribution of Santa Clara County by race is provided in the table below. Use these percentages to compute the expected number of cases for each racial group. Round each of the expected counts to 2 decimal places.| Race | Proportion | Expected Cases ||----------------------|------------|----------------|| White | 0.455 | || Hispanic | 0.252 | || Black | 0.025 | || Asian/Pacific Islander | 0.268 | || **Total** | **1** | |Determine the value of the test statistic. Round your answer to 1 decimal place.\[\chi^2 = \_\_\_\_\_\]#### 3. Compute the p-value. Round your answer to 4 decimal places.\[p \text{-value} = \_\_\_\_\_\]#### 4. Interpret the Results of the Significance Test- **Option 1:** The differences between the distribution of AIDS cases and the distribution of the general population in Santa Clara County are not statistically significant. From a practical perspective, the differences are minor.- **Option 2:** The differences between the distribution of AIDS cases and the distribution of the general population in Santa Clara County is statistically significant. The differences are also important from a practical perspective. For example, the number of blacks with AIDS is times more than expected and the number of Asian/Pacific Islanders with AIDS is times less than expected.

Hello! Thanks for the question. As per guidelines, we are answering the first three subparts.From…

Answered: The number of AIDS cases reported for…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

You are an education researcher interested in studying if race or ethnicity affects the severity of punishment children receive. Through open records, you are able to collect from several high schools the length of suspensions given to kids for fighting along with the race/ethnicity of the child. The state of Texas divides school children into one of 7 race/ethnicity groups: African American, American Indian, Asian, Hispanic, Pacific Islander, White, or Multiracial. You want to compare the average length of suspension among these 7 groups. Which statistical test would be best to determine if there is a significant difference in the severity of punishment among the different groups? one-sample t-test related samples t-test independent samples t-test ANOVA
Blue 0.143 Freckles 0.030 eyes No Freckles 0.857 0.182 Black 0.047 Green hair eyes 0.818 0.018 0.923 Brown eyes 0.982 0.278 0.061 Blue 0.259 eyes 0.722 0.232 Brown 0.327 Green hair eyes 0.768 0.153 Brown 0.461 0.414 eyes Caucasian 0.847 child 0.319 Blue 0.562 0.453 eyes 0.681 0.315 Green 0.302 Blonde hair eyes 0.698 0.164 Brown 0.123 eyes 0.025 0.836 0.857 Blue 0.473 eyes 0.143 0.767 Green Red hair 0.405 eyes 0.233 0.778 Brown 0.122 eyes 0.222
See the attached image for the introduction. Question: Fill in a blank ANOVA table.
a. Complete the last column of a copy of this table. Ago Number of People Proportion of Population Under 18 74,181,467 0.2403 18–44 112,806,642 45-64 81,489,445 0.2639 65 and Over 40,267,984 Total 308,745,538 Source: Age and Sex Composition: 2010, Census Briefs, www.census.gov/prod/ cen2010/briefs/c2010br-03.pdf
2. State the type of sample being collected. The quality control officer at a manufacturing plant needs to determine what percentage of items in a batch are defective. The officer chooses every 15th batch off the line and counts the number of defective items in each chosen batch
A survey of a subset of a population is called a? survey of element. target survey. sampled population. sample survey.
The following are the distances (in miles) to the nearest airport for 11 families. 6, 7, 9, 19, 20, 21, 22, 31, 31, 35, 37 Notice that the numbers are ordered from least to greatest. Give the five-number summary and the interquartile range for the data set. Five-number summary Minimum: Lower quartile: Median: Upper quartile: Maximum: Interquartile range: ☐
The sum of the Female category represents the number of _____ surveyed. ?
USA Today published the weekday circulation numbers for the top 15 newspapers in the country. Here are the data for the 6-month period ending in March 31, 2006. 2,272,815 2,149.786 1,141.464 751.832 724,242 708,477 673,379 579,079 513,387 438,722 427.771 398.329 398,246 397.288 365,011 a) Calculate the mean of this data set. Round to the nearest newspaper. b) Calculate the median of the data set of this data set. Round to the nearest newspaper. c) Which measure of center, the mean or the median, would better describe the center of the data set? Justify vour answer! .... B I S I X, x² Insert Formula
The average annual premium for automobile insurance in the U.S. is $1,503. The following annual premiums ($) are representative of the website's findings for the state of Michigan. $1,905 $2,725 $2,677 $2,600 $2,962 $2,370 $2,545 $2,529 $2,442 $2,312 Assume the population is approximately normal. $2,184 $2.332 $3,112 $2,545 $2,525 $2.981 $2.627 $2.857 $2.675 $2.115 a) Provide a point estimate of the mean annual automobile insurance premium in Michigan (SHOW RESULTS, but you may use Excel, b) Develop a 95% confidence interval for the mean annual automobile insurance premium in Michigan. (SHOW WORK, but you may use Excel for key calculations; c) Does the 95% confidence interval for the annual automobile insurance premium in Michigan include the national average for the U.S.? What is your interpretation of the relationship between auto insurance premiums in Michigan and the national average? 4
The Department of the Census provides the following data table. single married widowed divorced total Male .129 .298 .013 .040 .48 Female .305 .057 .054 .52 Total .233 .603 .070 .094 1.0 a) Fill in the missing word for each of the totals. (What is being totaled in each column/row?) b) Find P(Widowed and Male). = .013 c) Find P(Widowed)=.070 d) Find P(Married or Female). Write out the formula you use so I know that you know what you are doing. e) Find P(Widowed and Divorced). Explain your answer. f) Are Divorced and Male Mutually Exclusive events. Why or why not?
Please no written by hand and no emage For a data sẹt with 230 observations, how many classes should you have? Type your numeric answer and submit

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

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

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

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

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

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

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS