If Z = 196,the Standard Deviation Is 4

question 11

Multiple Choice

If z = 1.96,the standard deviation is 4.5,and the error is plus or minus $1.75,what is the
Approximate sample size needed for this study?

• A)11
• B)45
• C)14
• D)4
• E)26

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Definitions:

Asperger's Disorder

A previously used diagnosis on the autism spectrum characterized by difficulties in social interaction and nonverbal communication, along with restricted and repetitive patterns of behavior and interests.

Indigestion

A common digestive issue marked by feelings of discomfort or pain in the stomach associated with difficulty in digesting food.

Down Syndrome

Chromosomal disorder characterized by moderate-to-severe mental retardation and by such physical signs as a downward-sloping skin fold at the inner corners of the eyes. Also called trisomy-21.

Piercing Cry

A sharp and high-pitched sound, often made by a baby or a small child, indicating distress, discomfort, or urgent need for attention.