1. In obtaining data on the following, determine which of the four levels of
measurement (nominal, ordinal, interval, ratio) is most appropriate.
Rankings (first, second, third, and so on) in order of quality for a sample of
tire pressure gauges tested by Consumer Reports researchers
b. The tire pressure readings (in psi or lb/in.2) for a sample of gauges tested by
Consumer Reports researchers
a.
Ratings of tire pressure gauges as "recommended, acceptable, not accept-
able"
d. The college majors of researchers for Consumer Reports
e.
The internal air temperatures of a sample of inflated tires used in testing
C.
pressure gauges
2. A consumers' group measures the actual horsepower of a sample of lawn
mowers labeled as 12 hp. The sample is obtained by selecting 3 lawn mowers
from each manufacturer.
a. Are the values obtained discrete or continuous?
b. Identify the level of measurement (nominal, ordinal, interval, ratio) for the
horsepower values.
C.
Bod aristo
What type of sampling (random, stratified, systematic, cluster, conve-
nience) is being used?