Use the Following to Answer Questions

question 4

Short Answer

Use the following to answer questions :
In a recent Gallup poll,52% of parents with children under 18 years of age gave themselves a grade of B for the job they are doing bringing up their kids.Assume that this percentage is true for the current population of all parents with children under 18 years of age.You take a random sample of 1044 such parents and ask them to give themselves a grade for the job they are doing bringing up their kids.
-The probability that 550 or less will give themselves a grade of B is approximately: (Round the answer to 4 decimal places.)

---

Definitions:

Psychoneuroimmunology

The study of the interaction between psychological processes and the nervous and immune systems of the human body.

Immune System

The body's defense mechanism against infections, diseases, and foreign substances.

Endocrine Function

The activity of glands that secrete hormones directly into the bloodstream, regulating processes such as growth, metabolism, and mood.

Phagocytosis

A cellular process by which certain living cells called phagocytes ingest or engulf other cells or particles, often used by the immune system to remove pathogens and dead cells.