In: Statistics and Probability
Please use excel to find the following, thank you very much!
(8) A sample of 600 Scholastic Aptitude Test (SAT) results has mean of 500 and standard deviation of 100.
a. Determine the score below which 10% of the values lie.
b. Determine the score above which 10% of the values lie.
c. Determine a 95% confidence interval for the true mean.