Use the Following to Answer Questions

question 30

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 560 or more will give themselves a grade of B is approximately: (Round the answer to 4 decimal places.)

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Definitions:

Scoliosis

A medical condition characterized by a sideways curvature of the spine that occurs most often during the growth spurt just before puberty.

Spina Bifida

A birth defect where there is incomplete closing of the spine and membranes around the spinal cord during early pregnancy.

Herniated Disk

A condition where a disk in the spine slips or ruptures, potentially pressing on nearby nerves and causing pain or other symptoms.

Ethmoidal

Pertaining to the ethmoid bone, a spongy, cubical bone contributing to the structure of the nasal cavity and the orbits of the eyes.