# problemset2 - PAM 2100 Lecture 1 Fall 2008 Instructor:...

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PAM 2100 Lecture 1 Fall 2008 Instructor: Salam Abdus Problem Set #2 Posted: 16 th September, 2008 Due: Tuesday, 23 rd September, 2008, in class at 1:25 pm Circle all of your final answers. Put your name and your section number at the top. #1) ACT scores are distributed normally with a mean μ = 28 and a standard deviation σ = 4.8. How high must a student score in order to place in the top 20% of students taking the ACT test? Round your final answer to two decimal places. #2) Solve problem 1.126 (page 74) from the textbook. Explicitly give Tonya’s standardized score, rounded to two decimal places. Explicitly give Jermaine’s standardized score, rounded to two decimal places. #3) Battery packs in electric go-carts need to be able to last a fairly long time. The run- times (time until it needs to be recharged) of the battery packs made by a particular company are normally distributed with a mean of 2 hours and a standard deviation of 20 minutes. a) What proportion of these battery packs lasts longer than 3 hours? Round your

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## This note was uploaded on 10/27/2008 for the course PAM 2100 taught by Professor Abdus,s. during the Fall '08 term at Cornell University (Engineering School).

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problemset2 - PAM 2100 Lecture 1 Fall 2008 Instructor:...

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