Solution Found!
Refer to Exercise 5. Additional pieces of yarn will be
Chapter 5, Problem 6SE(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?
Questions & Answers
QUESTION:
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?
ANSWER:Answer:
Step 1 of 1:
In this question, we are asked to improve the precision of the confidence interval while referring to exercise 5.
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.
and
Here and are variable.
Then 90% confidence interval for the difference is,
Width of confidence interval =