STAT W21 Lecture Notes - Lecture 26: Statistical Parameter, Normal Distribution, Simple Random Sample
Document Summary
Consider a population parameter, and a procedure that produces random intervals. If some values of a parameter are known to be impossible, excluding those values from a confidence interval does not reduce the confidence level of the confidence interval. Conversely, including impossible values of a parameter in a confidence interval does not increase the confidence level. If the lower endpoint of a confidence interval for a population percentage is negative, If the upper endpoint of a confidence interval for a population percentage is greater the lower endpoint can be replaced with zero than 100%, the upper endpoint can be replaced with 100% Suppose all the number in a box are between "a" and "b" with a <= b. then: The se of the sample mean of "n" draws with replacement from the box is at most (b - a) The se of the sample mean of a simple random sample of size "n" from the box is at most.
