Exam 1: Introduction

The Human Resources director of a large corporation wishes to develop an employee benefits package and decides to select 500 employees from a list of all (N = 40,000)workers in order to study their preferences for the various components of a potential package.Information obtained from the sample will be used to draw conclusions about the true population ________.

The Commissioner of Health in New York State wanted to study malpractice litigation in New York.A sample of 31 thousand medical records was drawn from a population of 2.7 million patients who were discharged during 2010.The proportion of malpractice claims filed from the sample of 31 thousand patients is a ________.

The chancellor of a major university was concerned about alcohol abuse on her campus and wanted to find out the proportion of students at her university who visited campus bars on the weekend before the final exam week.Her assistant took a random sample of 250 students.The portion of students in the sample who visited campus bars on the weekend before the final exam week is an example of ________.

A personal computer user survey was conducted.Number of personal computers owned is an example of a ________ numerical variable.

TABLE 1-2 A Wall Street Journal poll asked 2,150 adults in the U.S.a series of questions to find out their view on the U.S.economy. -Referring to Table 1-2,the possible responses to the question "How would you rate the condition of the U.S.economy with 1 = excellent,2 = good,3 = decent,4 = poor,5 = terrible?" are values from a