Consider the formula used for any confidence interval and the elements included

Question

Consider the formula used for any confidence interval and the elements included in that formula. What happens to the confidence interval if you (a) increase the confidence level, (b) increase the sample size, or (c) increase the margin of error? Only consider one of these changes at a time. Explain your answer with words and by referencing the formula. Consider the formula used for any confidence interval and the elements included in that formula. What happens to the confidence interval if you (a) increase the confidence level, (b) increase the sample size, or (c) increase the margin of error? Only consider one of these changes at a time. Explain your answer with words and by referencing the formula.

Explanation / Answer

a) If increase the confidence level then confidence interval become wider.

b) If increase the sample size then confidence interval become narrower.

c) If increase the margin of error then confidence interval become wider.

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