Question: (Please provide step by step details and instructions on how you arrived the solution and answers so I can learn - thanks) QUESTION: What is

(Please provide step by step details and instructions on how you arrived the solution and answers so I can learn - thanks)

QUESTION: What is a Confidence Interval (Which is correct?).

A) A confidence interval with a 100% confidence level can be computed.

B) Decreasing sample size decreases the width of a confidence interval.

C) Increasing sample size decreases the width of a confidence interval.

D) Increasing the confidence level increases the width of a confidence interval.

E) Decreasing the confidence level increases the width of a confidence interval.

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