Home
Homework Answers
Statistics
In Africa in 2011, the number of deaths of a female from cardiovascular disease for different age groups are in table E ("Global health observatory," 2013)

In Africa in 2011, the number of deaths of a female from cardiovascular disease for different age groups are in table E ("Global health observatory," 2013): Expert Solutions for Success

In Africa in 2011, the number of deaths of a female from cardiovascular disease for different age groups are in table E ("Global health observatory," 2013). In addition, the proportion of deaths of females from all causes for the same age groups are also in table E. Do the data show that the death from cardiovascular disease are in the same proportion as all deaths for the different age groups? Test at the 10% level. Hint: start by calculating the total cardiovascular frequency.

Table E: Deaths of Females for Different Age Groups

Age	5-14	15-29	30-49	50-69	Total
Cardiovascular Frequency	10	27	60	480
All Cause Proportion	0.14	0.16	0.22	0.48

Answer

State the hypotheses:

This is the null hypothesis Ho: Deaths from cardiovascular disease in females are in the same proportion as all deaths for the different age groups

The alternate hypothesis Ha: Deaths from cardiovascular disease in females are not in the same proportion as all deaths for the different age groups

We are already given alpha value of 10% in problem statement

The expected frequencies should not be less than 5 for obtaining a valid test statistic in Chi-square test. However, as will be seen below in table, none of these frequencies is less than 5.

The Chi-square statistic is calculated using the formula

Where O and E are the observed and the expected frequency values respectively. This can be tabulated as;

Age	May-14	15-29	30-49	50-69	Total
Cardiovascular Frequency	10	27	60	480	577
Expected	10.12246	27.11301	60.11581	479.6487	577
x²	0.001481	0.000471	0.000223	0.000257	0.002433
All Cause Proportion	0.14	0.16	0.22	0.48	1
Expected	0.017543	0.04699	0.104187	0.83128	1
x²	0.854782	0.271791	0.128737	0.148443	1.403753
Total	10.14	27.16	60.22	480.48	578
Expected	10.14	27.16	60.22	480.48	578
x²	0.856263	0.272262	0.12896	0.1487	1.406186

The chi-square value is 1.406186

The degrees of freedom for the test are 3, since there are 4 values in table. The p-value, is 0.7041

Since the p-value is greater than the alpha level, we fail to reject the null hypothesis.

The result is not statistically significant at 0.1 level of significance. There is no sufficient evidence to support the claim that deaths from cardiovascular disease in females are not in the same proportion as all deaths of females for the different age groups.

statistics Stat-200 p-value chi-square null hypothesis alternate hypothesis

Share the answer

Find out how much your paper will cost

Prices start at $12.99 per page (275 words) for writing and $8.5 for editing and proofreading.

Post a question

MONEY BACKGUARANTEED
NO HIDDENCHARGES

Find Answers by Subjects

Art Biology Business Chemistry Communication Media Computer Science and IT Creative Writing Economics Education Engineering General Geography History Law Leadership and Governance Mathematics Nursing Philosophy Physics Psychology Science Sociology Statistics Technology

In Africa in 2011, the number of deaths of a female from cardiovascular disease for different age groups are in table E ("Global health observatory," 2013): Expert Solutions for Success

Answer

Find out how much your paper will cost

Find Answers by Subjects

Related Questions

STAT 200 Week 3 Homework Problems

Table A, below, contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013).

A person’s educational attainment and age group was collected by the U.S. Census Bureau in 1984 to see if age group and educational attainment are related.

The World Bank collected data on the percentage of GDP that a country spends on health expenditures and also the percentage of women receiving prenatal care

Many high school students take the AP tests in different subject areas

A study was undertaken to see how accurate food labeling for calories on food that is considered reduced calorie.

Stat-200 Researchers watched groups of dolphins off the coast of Ireland in 1998 to determine what activities the dolphins partake in at certain times of the day.

A project conducted by the Australian Federal Office of Road Safety asked people many questions about their cars.

STAT 200: The income of males in each state of the United States, including the District of Columbia and Puerto Rico, are given in table E and the income of females is given in table F.

Do you have a lengthy or urgent essay to write?