Question

in statistics, a population is a set of similar items or events which is of interest for some question or experiment and a sample is a set of data collected from a population by a defined procedure. in the following examples of statistical studies, identify the population of interest and the sample and provide the sample size.

i. an employee at the local ice cream parlor asks nine customers if they like vanilla ice cream.
o population: select an answer
o sample size:

ii. a sample of six thousand randomly selected adults were asked whether they drink at least 48 oz of water each day and only 39% said yes.
o population: select an answer
o sample size:

iii. in a poll of eight hundred randomly selected college students, 69% answered \yes\ when asked \do you have a television in your dorm room?\
o population: select an answer
o sample size:

question help: video

Explanation:

Step1: Identify population and sample size for i

The population is all customers of the local ice - cream parlor. The sample size is the number of customers surveyed, which is 9.

Step2: Identify population and sample size for ii

The population is all adults. The sample size is the number of adults surveyed, which is 6000.

Step3: Identify population and sample size for iii

The population is all college students. The sample size is the number of college students surveyed, which is 800.

Answer:

i. Population: All customers of the local ice - cream parlor
Sample size: 9
ii. Population: All adults
Sample size: 6000
iii. Population: All college students
Sample size: 800