Like us for free solutions*

TutorTeddy.com, Tutoring, Dallas, TX
Welcome to TutorTeddy.com

Statistics Help

Question: PSA data from a population of 40 – 65 year old men is approximately Normally distributed with µ = 3.6 ng/mL and σ of 0.35 ng/ml. What is the probability of selecting someone with a PSA level less than 3 ng/mL.  Edit

Answer: z=(x-bar - µ)/SD
=(3-3.6)/0.35
=-1.71
So, P(x-bar < 3 ng/mL)
=P(z < -1.71)
= 0.5 – P(0 < Z < 1.71)
=0.5 – .4564
=0.0436 (Ans.)  Edit


TutorTeddy.com & Boston Predictive Analytics

[ Email your Statistics or Math problems to help@teddycan.com (camera phone photos are OK) ]


Boston Office (Near MIT/Kendall 'T'):
Cambridge Innovation Center,
One Broadway, 14th Floor,
Cambridge, MA 02142,
Phone: 617-395-8864


Dallas Office (Near Galleria):
15950 Dallas Parkway,
Suite 400,
Dallas, TX 75248,
Phone: 866-930-6363