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Chapter 9: Q. 64 (page 587)

Anemia Hemoglobin is a protein in red blood cells that carries oxygen from the lungs to body tissues. People with fewer than 12grams of hemoglobin per deciliter of blood (g/dl)are anemic. A public health official in Jordan suspects that Jordanian children are at risk of anemia. He measures a random sample of 50children. Check the conditions for carrying out a significance test of the official鈥檚 suspicion.

Short Answer

Expert verified

To perform a significance test of the employee's suspicion, you will need:

  • Know the total number of children in the community.
  • Estimate how many children the employee believes has anemia.
  • Determine the correct number of children with anemia.

Step by step solution

01

Given information

People with fewer than 12grams of hemoglobin per deciliter of blood (g/dl)are anemic.

A public health official in Jordan suspects that Jordanian children are at risk of anemia.

He measures a random sample of 50children.

02

Explanation

Significance test is a statistical term used to describe a method for making decisions about a population. These decisions will be made based on information contained in a sample taken from within the population being studied.

Through this test method it is possible to obtain evidence that proves or not, a suspicion about that population. For that, it is necessary to know the total number of members in a population, the number of people who, supposedly, would fit into the suspicious situation, and the number of people who really fit into the suspicious situation.

To perform a significance test of the employee's suspicion, you will need:

  • Know the total number of children in the community.
  • Estimate how many children the employee believes has anemia.
  • Determine the correct number of children with anemia.

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