SOLUTION: let x be a random variable that represents the length of time it takes a student to write a term paper for Dr. Sugg's Stats class. After interviewing many students, it was found t

Algebra ->  Probability-and-statistics -> SOLUTION: let x be a random variable that represents the length of time it takes a student to write a term paper for Dr. Sugg's Stats class. After interviewing many students, it was found t      Log On


   

Question 383849: let x be a random variable that represents the length of time it takes a student to write a term paper for Dr. Sugg's Stats class. After interviewing many students, it was found that x has an approximately normal distribution with mean µ = 5.2 hours and standard deviation σ = 3.8 hours
Convert the following x intervals to standardized z intervals.
-2.0 ≤ x ≤ 2.9

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
-2.0+%3C=+X+%3C=+2.9;
%28-2.0+-+5.2%29%2F3.8+%3C=+%28X+-+5.2%29%2F3.8+%3C=+%282.9+-+5.2%29%2F3.8;
-1.895+%3C=+Z+%3C=+-0.605. The formula for z-scores is z+=+%28X-mu%29%2Fsigma.