This is Dataplot data file NATR332.DAT
Battery Capacity
(Location Shift Example (paired comparison))
Question: Are the 2 manufacturers the same?
Source--Natella, Mary G. (1963). Experimental Statistics.
National Bureau of Standards Handbook 91.
U.S. Government Printing Office. Page 3-32 to 3-33.
Number of observations = 10 + 10 = 20
Number of variables per line image = 2
Order of variables on a line image--
1. Y1 = Response Variable 1 = Capacity of Manufacturer 1 Batteries
2. Y2 = Response Variable 2 = Capacity of Manufacturer 2 Batteries
Note--Capacity is measured in ampere-hours
To read this file into Dataplot--
SKIP 25
READ NATR332.DAT Y1 Y2
T TEST Y1 Y2
LET DEL = Y1-Y2
T TEST DEL 0
Y1 Y2
Capacity Capacity
Manufacturer 1 Manufacturer 2
-----------------------------------
146 141
141 143
135 139
142 139
140 140
143 141
138 138
137 140
142 142
136 138