The registrar at a local college has recorded the number of students who have dr
ID: 2946556 • Letter: T
Question
The registrar at a local college has recorded the number of students who have dropped a statistics class for each trimester. The length of one trimester is four months. The given data show the number of students who dropped the class over the last three years. Class Year Semester Dropped 1 2010 Spring 5 2 2010 Summer 3 3 2010 Fall Class Year Semester Dropped 6 2011 Fall 2012 Spring 6 2012 Summer 4 2012 Fall 9 4 2011 Spring 5 9 5 2011 Summer4 What is the slope for the deseasonalized trend projection? OA, 08554 O B. 0.3089 OC. 1.5396 OD, 1.1660Explanation / Answer
from above unseasonal index:
slope of trend projection is 0.3089
option B is correct
Year Quarter t dropped 4-Qtr Moving Averages Centrd Moving averages seasonal irregular value deseasonal index 1 1 1 5 5.21 2 2 3 4.62 3 3 7 5 5.000 1.400 4.90 2 1 4 5 5 5.165 0.968 5.21 2 5 4 5.33 5.665 0.706 6.15 3 6 9 6 6.165 1.460 6.29 3 1 7 6 6.33 6.330 0.948 6.25 2 8 4 6.33 6.665 0.600 6.15 3 9 11 7 7.69