Question

in a study to estimate the mean hemoglobin levels (g/dL) among under-five children, the expected standard deviation was found to be 2.5 g/dL. If the researcher wants to estimate the mean with a precision of 0.5 g/dL and 95% significance level, what is the minimum sample size required ?

Answer 1

Reference Range

The reference ranges for hemoglobin (Hb) concentrations in adults are as follows [1] :

Male: 14-18 g/dL or 8.7-11.2 mmol/L (SI units)

Female: 12-16 g/dL or 7.4-9.9 mmol/L (SI units)

Pregnant female: >11 g/dL

Elderly: Slight decrease in values

Answer 2

Moderate hemoglobin levels (g / dL) among children under five years of age, the expected normal deviation was found to be 2.5 g / dL and the researcher wanted to measure the total accuracy of 0.5 g / dL with a mean value of 95%, Minimum sample size required by:

Normal hemoglobin is different for men, women, and children.

Explanation:

1. The average values are approximately 11: 9.5 to 24.5 g / dL in children, depending on the age of the child.
2. The researcher must have an understanding of the level of significance, outcome size, research power, and result size, error limit.
3. The incident rate between population and design result in order to use formula size calculation formulas effectively.
4. This is the minimum sample size, so we have to add up to 601.
5. Generally, diversity is a type of study conducted in the past.
6. In general, variability variables for continuous effect are expressed as SD.

• That prices will override in groups to get guaranteed results.