SBS 200 Lecture Notes - Lecture 2: Confidence Interval, Standard Deviation

• School: University of Arizona
• Department: Social and Behavioral Sciences
• Course: SBS 200
• Professor: Dr. Delaney

Document Summary

Remember, raw score = mean (z score)(standard deviation) 26. 08 and 33. 92 are the two raw scores that border the middle 95% of the curve: find the 2 raw scores that define the 95% confidence interval. = mean + (- z score)(standard error of the mean) = 30 + (1. 96)(. 5) = 30. 98: find the 2 raw scores that border the middle 99% of this distribution. Remember, raw score = mean (zscore)(standard deviation) 28. 84 and 35. 16 are the two raw scores that border the middle 99% of the curve: find the 2 raw scores that define the 99% confidence interval. Remember, raw score = mean (z score)(standard error of the mean) The normal distribution has a mean of 30 and a standard deviation of 2. = mean + (-z score)(standard error of the mean) = mean + (+z score)(standard error of the mean)