Question: Why would a researcher use a 95% confidence level rather than 100%? A. Because you can only be 100% sure that a data value is

Why would a researcher use a 95% confidence level rather than 100%?

A. Because you can only be 100% sure that a data value is between 0 and infinity.

B. 95% has simply become the norm in research and is therefore used.

C. Because 90% is not accurate enough and 100% doesn't account for sampling error.

D. Because it is quicker and more efficient.

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