A recent study investigated the effects of a "Buckle Up Your Toddlers" campaign to
get parents to use grocery cart seat belts. Investigators observed a representative
sample of parents at grocery stores in a large city, and found 192 out of 594 parents
buckling up their toddlers.
A) Compute an estimate of the population proportion of all parents who buckle up their toddlers
B) Based on the data above, what is the margin of error of ?
Correct Answer:
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