Home
general
1 case study prevalence of mild anemia in school children in a rural community in peru introduction mild anemia is a publi

Question

1. Case Study: Prevalence of Mild Anemia in School Children in a Rural Community in Peru Introduction: Mild anemia is a public health problem in Peru, especially in rural areas where access to adequate nutrition may be limited. This study seeks to investigate the prevalence of mild anemia in schoolchildren in a rural community in Peru and its possible association with access to a balanced diet. Problem: What is the prevalence of mild anemia in schoolchildren in a rural community in Peru and how is it related to access to a balanced diet? / Determine whether there is a significant association between dichotomous variables. Anemia (Present/absent). Balanced diet (Yes / No). Data were collected from 95 schoolchildren in a rural community in the country, recording their anemia status (present or absent) and their access to a balanced diet (yes or no), as assessed by parents or guardians. The data are presented in the following table: Table 1: Type of diet and anemia in children in a rural community, Peru 2022. Balanced diet Anemia Present Absent No 32 12 Yes 9 42 With a significance level of 0.05, can we conclude that anemia and balanced diet are independent? Apply the Chi Square test to determine if there is a significant association between these two variables in the sample of school children from the rural community. Interpret the results obtained and draw conclusions about the relationship with food in the community studied. Reflection Question: After performing the Chi-Square analysis and obtaining the results, reflect on what other variables could influence reducing the prevalence of anemia that were not included in this study?

240

likes

1201 views

Answer to a math question 1. Case Study: Prevalence of Mild Anemia in School Children in a Rural Community in Peru Introduction: Mild anemia is a public health problem in Peru, especially in rural areas where access to adequate nutrition may be limited. This study seeks to investigate the prevalence of mild anemia in schoolchildren in a rural community in Peru and its possible association with access to a balanced diet. Problem: What is the prevalence of mild anemia in schoolchildren in a rural community in Peru and how is it related to access to a balanced diet? / Determine whether there is a significant association between dichotomous variables. Anemia (Present/absent). Balanced diet (Yes / No). Data were collected from 95 schoolchildren in a rural community in the country, recording their anemia status (present or absent) and their access to a balanced diet (yes or no), as assessed by parents or guardians. The data are presented in the following table: Table 1: Type of diet and anemia in children in a rural community, Peru 2022. Balanced diet Anemia Present Absent No 32 12 Yes 9 42 With a significance level of 0.05, can we conclude that anemia and balanced diet are independent? Apply the Chi Square test to determine if there is a significant association between these two variables in the sample of school children from the rural community. Interpret the results obtained and draw conclusions about the relationship with food in the community studied. Reflection Question: After performing the Chi-Square analysis and obtaining the results, reflect on what other variables could influence reducing the prevalence of anemia that were not included in this study?

$Expert avatar$

Gene

4.5

105 Answers

1. **Datos Observados:**

- Sin alimentación balanceada:
- Anemia presente:

O_{11} = 32

- Anemia ausente:

O_{12} = 12

- Con alimentación balanceada:
- Anemia presente:

O_{21} = 9

- Anemia ausente:

O_{22} = 42

2. **Totales:**

- Filas:
- Sin alimentación balanceada:

32 + 12 = 44

- Con alimentación balanceada:

9 + 42 = 51

- Columnas:
- Anemia presente:

32 + 9 = 41

- Anemia ausente:

12 + 42 = 54

- Total general:

44 + 51 = 95

3. **Valores Esperados (

E_{ij}

):**

-

E_{11} = \frac{44 \times 41}{95} \approx 19

E_{12} = \frac{44 \times 54}{95} \approx 25

E_{21} = \frac{51 \times 41}{95} \approx 22

E_{22} = \frac{51 \times 54}{95} \approx 29

4. **Cálculo de

\chi^2

:**

-

\chi^2 = \sum \frac{(O_{ij} - E_{ij})^2}{E_{ij}}

\chi^2 = \frac{(32 - 19)^2}{19} + \frac{(12 - 25)^2}{25} + \frac{(9 - 22)^2}{22} + \frac{(42 - 29)^2}{29}

\chi^2 \approx 27.01

5. **Valor P y Grados de Libertad:**
- Grados de libertad

= (n_{\text{filas}} - 1) \times (n_{\text{columnas}} - 1) = 1

- Valor P

= 0.0000002024

6. **Conclusión:**
- Dado que el valor P es mucho menor que el nivel de significancia de

0.05

, se rechaza la hipótesis nula.
- La conclusión es que existe una asociación significativa entre la presencia de anemia y el acceso a una alimentación balanceada.

Frequently asked questions (FAQs)

What is the value of arccos(cos(2π/3)) - arcsin(sin(π/6))?

Question: What is the limit of (3x^2 + 4x + 5) / (x^2 + x - 6) as x approaches 2?

Question: What is the equation of an exponential function that passes through the point (2, 8) and has an asymptote at y = 0? (

New questions in Mathematics

A particular employee arrives at work sometime between 8:00 a.m. and 8:50 a.m. Based on past experience the company has determined that the employee is equally likely to arrive at any time between 8:00 a.m. and 8:50 a.m. Find the probability that the employee will arrive between 8:05 a.m. and 8:40 a.m. Round your answer to four decimal places, if necessary.

-x+3x-2,si x=3

To calculate the probability that a player will receive the special card at least 2 times in 8 games, you can use the binomial distribution. The probability of receiving the special card in a single game is 1/4 (or 25%), and the probability of not receiving it is 3/4 (or 75%).

11(4x-9)= -319

A car tire can rotate at a frequency of 3000 revolutions per minute. Given that a typical tire radius is 0.5 m, what is the centripetal acceleration of the tire?

Let X be a discrete random variable with range {1, 3, 5} and whose probability function is f(x) = P(X = x). If it is known that P(X = 1) = 0.1 and P(X = 3) = 0.3. What is the value of P(X = 5)?

What is the amount of interest of 75,000 at 3.45% per year, at the end of 12 years and 6 months?

A car that starts from rest moves for 11 min, reaching a speed of 135 km/h, calculate the acceleration it had

The mean temperature for july in H-town 73 degrees fahrenheit. Assuming that the distribution of temperature is normal what would the standart deviation have to be if 5% of the days in july have a temperature of at least 87 degrees?

Divide 22 by 5 solve it by array and an area model

Suppose you have a sample of 100 values from a population with mean mu = 500 and standard deviation sigma = 80. Given that P(z < −1.25) = 0.10565 and P(z < 1.25) = 0.89435, the probability that the sample mean is in the interval (490, 510) is: A)78.87% B)89.44% C)10.57% D)68.27%

Determine the increase of the function y=4x−5 when the argument changes from x1=2 to x2=3

The probability of growing a seedling from a seed is 0.62. How many seeds do I need to plant so that the probability of growing at least one seedling is greater than or equal to 0.87?

Sections of steel tube having an inside diameter of 9 inches, are filled with concrete to support the main floor girder in a building. If these posts are 12 feet long and there are 18 of them, how many cubic yards of concrete are required for the job?

Let x be an integer. Prove that x^2 is even if and only if is divisible by 4.

solid obtained by rotation around the axis x = -1, the region delimited by x^2 - x + y = 0 and the abscissa axis

You buy a $475,000 house and put 15% down. If you take a 20 year amortization and the rate is 2.34%, what would the monthly payment be?

2+2020202

Write decimal as the fraction 81/125 simplified

(3.1x10^3g^2)/(4.56x10^2g)

You might be interested in