Essay
A recent study investigated the effects of a "Buckle Up Your Toddlers" campaign to get parents to use the grocery cart seat belts. Investigators observed a simple random sample of parents in a large city, and found 192 out of 594 parents buckling up their toddlers.
a) Compute a point estimate of the true proportion of all parents who buckle up their toddlers.
b) Construct and interpret a 95% confidence interval for π, the true proportion of all parents who buckle up their toddlers.
Correct Answer:
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a) point estimate: 
b) 95% CI...View Answer
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Correct Answer:
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b) 95% CI...
View Answer
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