Exam 1: Introduction

TABLE 1-1 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products. -Referring to Table 1-1,the possible responses to the question "What is your annual income rounded to the nearest thousands?" result in

The number of defective apples in a single box will be measured on an interval scale.

The quality ("terrible," "poor," "fair," "acceptable," "very good" and "excellent")of a day care center is an example of a numerical variable.

TABLE 1-1 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products. -Referring to Table 1-1,the possible responses to the question "How would you rate the quality of your purchase experience with 1 = excellent,2 = good,3 = decent,4 = poor,5 = terrible?" are values from a

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 "What do you think is the current unemployment rate?" result in

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 "In which year do you think the last recession in the U.S.started?" result in

The Quality Assurance Department of a large urban hospital is attempting to monitor and evaluate patient satisfaction with hospital services.Prior to discharge,a random sample of patients is asked to fill out a questionnaire to rate such services as medical care,nursing,therapy,laboratory,food,and cleaning.The Quality Assurance Department prepares weekly reports that are presented at the Board of Directors meetings and extraordinary/atypical ratings are easy to flag.Values computed from the sample results each week are called ________.

A statistic is usually used to provide an estimate for a usually unobserved parameter.

The process of using sample statistics to draw conclusions about true population parameters is called

TABLE 1-1 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products. -Referring to Table 1-1,the possible responses to the question "What brand of DVD player did you purchase?" result in

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.All the employees in the corporation constitute the ________.

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance.A person's age is an example of a ________ numerical variable.

Which of the following is not an element of descriptive statistical problems?

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 many people in your household are unemployed currently?" result in

A study is under way in Yosemite National Forest to determine the adult height of American pine trees.Specifically,the study is attempting to determine what factors aid a tree in reaching heights greater than 60 feet tall.It is estimated that the forest contains 25,000 adult American pines.The study involves collecting heights from 250 randomly selected adult American pine trees and analyzing the results.Identify the variable of interest in the study.

Researchers are concerned that the weight of the average American school child is increasing implying,among other things,that children's clothing should be manufactured and marketed in larger sizes.If X is the weight of school children sampled in a nationwide study,then X is an example of

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 many people in your household are unemployed currently?" are values from a

A personal computer user survey was conducted.Computer brand primarily used is an example of a ________ variable.

The grade level (K-12)of a student is an example of a numerical variable.

The Dean of Students conducted a survey on campus.Class designation (Freshman,Sophomore,Junior,Senior)is an example of a ________ variable.