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What is meant by a confidence level of $90\%$?

A

There are $90$ chances out of $100$ that the sample results will not vary from the true characteristics of the population by more than a specified amount.

B

The point estimate is within $10\%$ of the true population value.

C

The expected error rate is equal to $5\%$.

D

A larger sample size is required than if the desired confidence level were equal to $95\%$.

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