Question

in a survey conducted by a reputable marketing agency, 245 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls). complete parts (a) through (f) below
determine the sample in this study. select the correct choice below and, if necessary, fill in the answer box within your choice
a. the sample is all adults with a cell phone
b. the sample is the 1000 adults 19 years of age or older
(type a whole number.)
c. the sample is all adults
d. the sample is all adults 19 years of age or older
determine the population of interest. select the correct choice below and, if necessary, fill in the answer box within your choice
a. the population is the adults 19 years of age or older
(type a whole number.)
b. the population is all adults
c. the population is all cell phone users
d. the population is all adults 19 years of age or older

Explanation:

• Sample: A sample is a subset of a population. In this case, the survey was conducted on 1000 adults 19 years of age or older. So, the sample is the specific group of 1000 adults 19 years of age or older that was surveyed.
• Population of interest: The population of interest is the entire group that we want to draw conclusions about. Here, the study is about adults 19 years of age or older (since the sample is from this group and the question is about their behavior - bringing and using cell - phone every trip to the bathroom).

Answer:

• Sample: B. The sample is the 1000 adults 19 years of age or older
• Population of interest: D. The population is all adults 19 years of age or older