Solution Found!
If the sample size n is doubled, by how much is the length
Chapter 8, Problem 20E(choose chapter or problem)
QUESTION:
If the sample size n is doubled, by how much is the length of the CI on \(\mu\) in Equation 8-5 reduced? What happens to the length of the interval if the sample size is increased by a factor of four?
Questions & Answers
QUESTION:
If the sample size n is doubled, by how much is the length of the CI on \(\mu\) in Equation 8-5 reduced? What happens to the length of the interval if the sample size is increased by a factor of four?
ANSWER:Step 1 of 3
For a sample mean, , of a random sample of size n from a normal population with known variance , a Confidence Interval on is given by (Equation 8-5),