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A simple random sample of 120 vet clinics in Adelaide reveals that the vast majority of...

A simple random sample of 120 vet clinics in Adelaide reveals that the vast majority of them only treat small pets (dogs, cats, rabbits, etc) and no large animals (cows, horses, etc). Of the 120 clinics sampled, 88 responded that they do not treat large animals at their clinics.

If a 95% confidence interval were calculated instead of a 90% confidence interval for p, what would happen to the width of the confidence interval?

Select one:

a. It would be narrower

b. It would be wider

c. It would stay the same

d. This cannot be determined from the information given.

math   Statistics-And-Probability   
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Answer #1

It would be narrower.Since a 95% confidence interval is more refined than a 90% confidence interval.

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