What happens to the interval as the level of confidence is changed? Explain why this is a logical result.
1 answer:
Answer with explanation:
A x% confidence interval interprets the percentage of certainty that a person can believe that the true population parameter.
It is also represented as Point estimate ± Margin of error
Confidence level is proportional to the Margin of error.
As confidence level increases the error bound increases that makes the confidence interval broader. As confidence level decreases the error bound decreases , making the confidence interval narrower.
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Answer: 1,356 tickets
12x=16,272
divide by 12 on both sides
12x÷12=16,272÷12
x=16,272÷12
x=1,356
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