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E2A.fall09.final

# E2A.fall09.final - PubH 6450 Exam 2 NAME Lecture...

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PubH 6450 NAME:_____________________________________________ Exam 2 (11/12/09) Lecture Instructor (please circle): Susan Telke Lynn Eberly Directions: This is an open-book, open-notes exam; however, sharing of books, notes, handouts, homework or lab papers, calculators, or verbal comments is not permitted. You may use a calculator of your choosing, but laptop computers and any kind of internet connection are not permitted. For multiple choice questions, please clearly indicate your answer(s). For short answer problems, please show all relevant work necessary to arrive at a solution, as partial credit will be awarded. DO NOT LOOK AT OR BEGIN THE EXAM UNTIL THE INSTRUCTOR ANNOUNCES THAT THE EXAM IS STARTING. You will have from 1:25pm to 3:20pm to complete this exam, so do not spend too much time on any one problem. With such a big class, there is always someone who needs to take the exam early or late. After the exam is over, DO NOT DISCUSS THIS EXAM with anyone who was not in this same room taking it with you. We anticipate returning the exams in class on Tuesday. Good luck!! A 1 of 11

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1. Systolic Blood Pressure (SBP) in a doctor’s office setting is on average higher when a person is standing compared to when they are lying down. Each of thirty two randomly selected pa- tients had their blood pressure measured in a local wellness clinic both standing up and lying down. Below are summary statistics generated from SAS for SBP lying down, SBP standing up and the difference (SBP standing up minus SBP lying down). Assume the SBP values are approximately normally distributed. Use these summary statistics to answer questions A – G below. The MEANS Procedure Variable N Mean Std Dev Minimum Maximum ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ up 32 117.4062500 12.7882491 92.0000000 146.0000000 down 32 108.5937500 15.1313803 88.0000000 144.0000000 diff 32 8.8125000 7.7352878 8.0000000 28.0000000 ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ A.
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