STAT 231 Midterm: Stat 231 Exam 3 Fall 2011
Document Summary
I have neither given nor received unauthorized assistance on this exam. This exam concerns the analysis of some data collected by the norwegian public roads. Administration (part of the "no2" data set available from the "statlib" data sets archive, submitted to the archive by magne aldrin) concerning how air pollution at a road is related to traffic volume, and time-related and meteorological variables. The response variable is hourly values of the logarithm of the concentration of no particles y . 2 measured at alnabru in oslo, norway, between october 2001 and august 2003. The predictor variables in the original data set were x. 7 logarithm of the number of cars per hour temperature 2m above ground ( c) wind speed m / s temperature difference between 25m and 2m above ground ( c) wind direction (in degrees between 0 and. 360) hour of day (from 0 to 24) day number from october 1, 2001.
