Table:
resell
discard age

ratio
age

mean
standard error
mean
standard error
mean
standard error

all buildings
0.380
0.308
16.4
11.7
21.5
12.1

plants for manufacturing
0.308
0.291
17.5
12.0
24.3
11.1

warehouses, refrigerated storage, freight terminals
0.397
0.292
17.9
9.8
25.9
14.1

maintenance garages, workshops, equipment storage facilities
0.287
0.279
16.1
9.4
23.7
11.5

office buildings
0.411
0.304
17.2
13.4
21.3
13.2

shopping centres, plazas, malls, stores
0.500
0.308
15.0
10.9
9.7
6.0

other industrial and commercial
0.342
0.284
18.2
10.9
22.3
9.2

telephone and cablevision lines, underground and marine cables
0.449
0.390
9.2
7.3
17.7
8.1

communication towers, antennae, earth stations
0.339
0.279
13.5
9.8
22.6
9.4

all machinery and equipment
0.271
0.259
8.5
5.2
10.2
5.3

office furniture, furnishing
0.301
0.252
8.5
4.1
10.7
4.3

computers, associated hardware and word processors
0.312
0.278
4.8
2.0
5.8
2.1

non-office furniture, furnishings and fixtures
0.264
0.267
8.3
4.2
8.8
3.9

scientific, professional and medical devices
0.274
0.281
9.1
4.9
11.5
5.2

heating, electrical, plumbing, air conditioning and refrigeration equipment
0.251
0.267
9.9
5.4
14.5
6.7

pollution abatement and control equipment
0.232
0.293
14.4
7.5
13.0
6.2

motors, generators, transformers, turbines, compressors and pumps of all types
0.264
0.272
11.6
6.5
15.5
7.1

heavy construction equipment
0.267
0.242
9.9
5.0
11.0
5.5

tractors and other field equipment
0.253
0.216
9.1
4.3
10.8
4.8

capitalized tooling and other tools
0.248
0.260
9.6
5.3
9.2
4.0

drilling and blasting equipment
0.309
0.249
8.2
4.8
11.7
5.1

automobiles and major replacement parts
0.343
0.240
4.5
2.1
5.6
2.4

buses (all types) and major replacement parts
0.159
0.201
12.9
5.1
11.1
4.9

trucks, vans, truck tractors, truck trailers and major replacement parts
0.256
0.247
7.4
3.5
8.5
3.5

other transportation equipment
0.233
0.252
10.0
5.7
10.2
5.0

computer-assisted processing machinery and equipment
0.257
0.292
9.9
6.0
12.1
5.7

non-computer-assisted processing machinery and equipment
0.219
0.249
11.7
6.1
13.2
5.5

communication and related equipment
0.285
0.292
7.5
4.5
9.5
4.3

safety and security equipment and other machinery and equipment
0.324
0.288
9.5
5.5
11.7
5.7

Statement: from 1985 to 2001, the mean reselling price ratio for machinery and equipment is 0.27.
Question: from 1985 to 2001, what was the mean reselling price ratio for machinery and equipment?
Answer: [0.271]