Question

in a gallup poll of 1187 randomly selected american adults, 54% had a favorable view of china. identify the population, sample, and sampling method. then comment on whether or not the sample is representative of the population.

1. identify the population.

54% of the randomly selected american adults
the 1187 randomly selected american adults
all american adults
all adults in the world

1. identify the sample.

the 1187 randomly selected american adults
54% of the randomly selected american adults
all adults in the world
all american adults

1. what sampling method was used?

convenience
voluntary response
cluster
random

1. comment on whether or not the sample is representative of the population.

the sample is fairly large and random and is likely to be representative of the population
members of the sample have different characteristics than those of the population and the sample is unlikely to be representative of the population.
the size of the sample is larger than the size of the population and is unlikely to be representative of the population.

Explanation:

1. The population is the entire group of interest. Here, the poll is about American adults' views, so all American adults is the population.
2. The sample is the subset of the population that is actually studied. The 1187 randomly - selected American adults are the sample.
3. Since the adults are randomly selected, the sampling method is random sampling.
4. A fairly large and randomly - selected sample is more likely to be representative of the population.

Answer:

1. C. all American adults
2. A. the 1187 randomly selected American adults
3. D. random
4. A. The sample is fairly large and random and is likely to be representative of the population