Manuel Banales, Marketing Director of Plano Power Plants, Inc.'s Electrical Division, is directing a study to identify and assess the relative importance of product features.Manuel directs his staff to design a survey questionnaire for distribution to 100 of Plano's 954 customers.For this study, the set of 100 customers is ___.
A)a parameter
B)a sample
C)the population
D)a statistic
E)the frame

Question

Quizplus · Accepted Answer

The set of 100 customers that Manuel's staff is surveying is a sample, as it represents a subset of the larger population of Plano Power Plants, Inc.'s customers. The population is defined as the entire group of individuals or objects that the study is focused on, in this case all 954 customers. A parameter is a characteristic of the population, such as the mean or standard deviation, and a statistic is a characteristic of the sample, such as the sample mean or sample proportion. The frame is the list of individuals or objects that make up the population, and in this case would be the list of all 954 customers.