10:5 Log in to Myumhs File Ser… m Blaufuss Multimedia – He… 5 Dr. Najeeb Lectures » Wor… Q theAprylle Quizlet F. MH Education LIE Chest Radiology 8 Figure 1
Medical lmages Davenport University 37‘ Marriott Residences St. Kit…
Search A
United Dairies X
Chapter 5 Time Series Anoiysns and Forecasting
Sort V
Ch 5: Time Series Analysis and For… (‘I)
th’ ‘ht tdt l
3.3535352232398252?c§$p2?9“5§;” Week Sales Week Sales
28828882323?..ng89.38828Emma” 1 2750 7 3300
Inc., supplies milk to several 2 31m 8 3100
‘d dt th hthCt,
20:32:88.;882fiat-3.8:: NEB file 3 3250 9 2950
develop a forecast of the number of half 4 2800 10 3000
UnitedDairies 5 2900 1 1 3200
6 3050 12 3150
a. Construct a time series plot. What type of pattern exists in the data?
b. Use exponential smoothing with a = 0.4 to develop a forecast of demand for week 13.
What is the resulting MSE?
11. For the Hawkins Company, the monthly percentages of all shipments received on time
NEB filg over the past 12 months are 80, 82, 84, 83, 83, 84, 85, 84, 82, 83, 84, and 83.
a. Construct a time series plot. What type of pattern exists in the data?
Hawkins b. Compare a three-month moving average forecast with an exponential smoothing fore-
cast for a = 0.2. Which provides the better forecasts using MSE as the measure of
model accuracy?
c. What is the forecast for next month?
12. Corporate triple A bond interest rates for 12 consecutive months follow.
EB file 9.5 9.3 9.4 9.6 9.8 9.7 9.8 10.5 9.9 9.7 9.6 9.6

Q TrlpleABond a. Construct a time senes plot. What type of pattern ex18ts 1n the. data.
b. Develop three-month and four-month movmg averages for this time series. Does the
three-month or the four-month moving average provide the better forecasts based on
MSE? Explain. V
Book Content: 1 results
II 1; ‘ ‘ , ‘ g – A _ 2:43 PM
£0 .1] q I 6} g , K . m =.-. l’ …l t. 7,28,…