Babies Weighing Less Than 5

question 76

Essay

Babies weighing less than 5.5 pounds at birth are considered "low-birth-weight babies." In the United States, 7.6% of newborns are low-birth-weight babies. The following information was accumulated from samples of new births taken from two counties.
a.Develop a 95% confidence interval estimate for the difference between the proportions of low-birth-weight babies in the two counties.
b.Is there conclusive evidence that one of the proportions is significantly more than the other? If yes, which county? Explain, using the results of part (a). Do not perform any test.

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Definitions:

Learning Disability

A neurological disorder that affects an individual's ability to process, understand, or use information, impacting their learning proficiency.

Inappropriate Behavior

Actions or conduct that are not suitable or proper in a given context or situation.

Autism Spectrum Disorders

A range of neurodevelopmental conditions characterized by challenges with social skills, repetitive behaviors, speech and nonverbal communication.

Repetitive Behaviors

Actions repeated in a similar manner over time, often observed in individuals with autism spectrum disorders but can occur in typical development as a means of learning or coping.