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Solved 3 Questions on Applied Regression Analysis - Midterm Test 1 | STAT 51200, Exams of Statistics

Purdue University Statistics

Material Type: Exam; Class: Applied Regression Analysis; Subject: STAT-Statistics; University: Purdue University - Main Campus; Term: Fall 2012;

Typology: Exams

2011/2012

Uploaded on 10/15/2012

klfitzpa6600 🇺🇸

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Download Solved 3 Questions on Applied Regression Analysis - Midterm Test 1 | STAT 51200 and more Exams Statistics in PDF only on Docsity!

1. A plant distills liquid air to produce oxygen. The following data were used by this plant to assess the relationship between the percentage of impurity in the oxygen (PERC) with the amount (ppm) of impurity in the liquid air (AMT). Use the attached SAS output at the end of the exam and the scatterplot below to answer the following questions. Mt ° 0 45 0 $7 G8 88 FM Ll G2 LE da ba Lb bP ba 4 2 2 (a) (3 pts) What is the response variable? PER G (b) (6 pts) Write down the least squares regression linc and describe the relationship be- tween PERC and AMT. perc = 96.454 -2.9 MT NEGATIVE LINEAR eeuaTIONsAiP WilH UNIT ENG@IZERSE iW AMT RESDETING IN Dicernse OF 2.9 7.

Solved 3 Questions on Applied Regression Analysis - Midterm Test 1 | STAT 51200, Exams of Statistics

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