Question

a survey of 1001 u.s. adults found that 46.8% of respondents typically feel well rested on weekdays. identify the population and the sample. describe the sample data set. what is the population in the given problem?
a. the responses of all u.s. adults
b. 46.8% of all u.s. adults
c. the 1001 u.s. adults selected
d. 46.8% of the 1001 u.s. adults selected

Explanation:

To determine the population, we recall that the population in a survey is the entire group we want to study. Here, the survey is about U.S. adults' feelings of being well - rested on weekdays. So the population should be all U.S. adults (and their responses related to this topic).

• Option B is a percentage of the population, not the population itself.
• Option C is the sample (the 1001 selected U.S. adults), not the population.
• Option D is a percentage of the sample, not the population.
• Option A correctly identifies the population as the responses of all U.S. adults (since we are interested in their responses regarding being well - rested on weekdays).

Answer:

A. The responses of all U.S. adults