Refer to Exercise 5. Additional pieces of yarn will be sampled in order to improve the
Chapter 5, Problem 6(choose chapter or problem)
Refer to Exercise 5. Additional pieces of yarn will be sampled in order to improve the precision of the confidence interval. Which would increase the precision the most: sampling 50 additional pieces of yarn from the old batch, 50 additional pieces from the new batch, or 25 additional pieces from each batch?
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