Jun 21, 2012, 08:38 AM
A university requires applicants to submit their SAT scores (Scholastic Aptitude Test) as part of the application process. The reliability coefficient of the SAT scores for these applicants is 0.89. The mean for the SAT scores is 800 and the standard deviation is 100. Edgar is a student who has scored 937 on the SAT. Construct a 90% and a 95% confidence intervals for this studentís score.