Question: 6. We have calculated a confidence interval based on a sample size of n = 68. Now we want to get a better estimate with

6. We have calculated a confidence interval based on a sample size of n = 68. Now we want to get a better estimate with a standard error that is only one-fourth as large. How large does our new sample need to be?

A) 272 B) 1088 C) 308 D) 1232 E) None of the Answers

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