Seat Belts
A study was conducted to determine whether the use of seat belts in vehicles depends on whether or not a child was present in the car.A sample of 1,000 people treated for injuries sustained from vehicle accidents was obtained,and each person was classified according to (1)child present (yes/no)and (2)seat belt usage (worn or not worn)during the accident.The data are shown in the table below. 
-{Seat Belts Narrative} Prepare the table of expected values.
Definitions:
Intelligence Quotient
A measure of a person's relative cognitive abilities determined through specific standardized tests.
Mental Age
A measure of an individual's cognitive ability expressed as the age at which an average individual reaches the same ability.
Chronological Age
The actual age of an individual measured in years from the date of birth to the current date.
Charles Spearman
An early 20th-century psychologist who is best known for his work in intelligence, including the theory that a general intelligence factor underlies all cognitive abilities.
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