Home Chapter 1 Self-Assessment Quizzes Multiple Choice

# Multiple Choice

This activity contains 28 questions.

## The universe or "totality of items or things" under consideration is called:

 a sample. a population. a parameter. a statistic.

## Those methods involving the collection, presentation, and characterization of a set of data in order to properly describe the various features of that set of data are called:

 inferential statistics. total quality management. sampling. descriptive statistics.

## The portion of the universe that has been selected for analysis is called:

 a sample. a frame. a parameter. a statistic.

## A summary measure that is computed to describe a numerical characteristic from only a sample of the population is called:

 a parameter. a census. a statistic. the scientific method.

## A summary measure that is computed to describe a characteristic of an entire population is called:

 a parameter. a census. a statistic. total quality management.

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

 inferential statistics. experimentation. primary sources. descriptive statistics.

## Which of the four methods of data collection is involved when a person retrieves data from an online database?

 Published sources. Experimentation. Surveying. Observation.

## Which of the four methods of data collection is involved when people are asked to complete a questionnaire?

 Published sources. Experimentation. Surveying. Observation.

## Which of the four methods of data collection is involved when a person records the use of the Los Angeles freeway system?

 Published sources. Experimentation. Surveying. Observation.

## A focus group is an example of which of the four methods of data collection?

 Published sources. Experimentation. Surveying. Observation.

## Which of the following sampling methods is a probability sample?

 Judgment sample. Quota sample. Chunk sample. Simple random sample.

## In which of the following sampling methods are the N individuals subdivided into separate subpopulations with a common characteristic?

 Cluster sample. Systematic sample. Stratified sample. None of the above.

## Obtaining too many males in your sample would be an example of which of the following types of survey errors?

 Coverage error. Nonresponse error. Sampling error. Measurement error.

## Which of the following is true about response rates?

 The longer the questionnaire, the lower the rate. Mail surveys usually produce lower response rates than personal interviews or telephone surveys. Question wording can affect a response rate. All of the above.

## Which of the following is a reason that a manager needs to know about statistics?

 To know how to properly present and describe information. To know how to draw conclusions about the population based on sample information. To know how to improve processes. All of the above.

## A population frame for a survey contains a listing of 6,179 names. Using a table of random numbers, which of the following code numbers will appear on your list?

 06 0694 6946 61790

 TABLE 1-1 An insurance company evaluates many variables about a person before deciding on an appropriate rate for automobile insurance. The following are some of these variables. Classify each variable as categorical, discrete and numerical, or continuous and numerical.

Referring to Table 1-1: The number of claims a person has made in the last three years is what type of variable?

 Categorical Discrete and numerical Continuous and numerical None of the above

## Referring to Table 1-1: A person's age is what type of variable?

 Categorical Discrete and numerical Continuous and numerical None of the above

## Referring to Table 1-1: A person's gender is what type of variable?

 Categorical Discrete and numerical Continuous and numerical None of the above

## Which of the following can be reduced by proper interviewer training?

 Sampling error. Measurement error. Coverage error Nonresponse error

 TABLE 1-2 Mediterranean fruit flies were discovered in California a few years ago and badly damaged the oranges grown in that state. Suppose the manager of a large farm wanted to study the impact of the fruit flies on the orange crops on a daily basis over a 6-week period. On each day a random sample of orange trees was selected from within a random sample of acres. The daily average number of damaged oranges per tree and the proportion of trees having damaged oranges were calculated.

Referring to Table 1-2, the two main measures calculated each day (i.e., average number of damaged oranges per tree and proportion of trees having damaged oranges) are called _______.

 statistics parameters samples populations

## Referring to Table 1-2, the two main measures calculated each day (i.e., average number of damaged oranges per tree and proportion of trees having damaged oranges) may be used on a daily basis to estimate the respective true population _______.

 estimates parameters statistics frame

## Referring to Table 1-2, in this study, drawing conclusions on any one day about the true population characteristics based on information obtained from the sample is called _______.

 evaluation descriptive statistics inferential statistics survey

 TABLE 1-3 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.

Referring to Table 1-3, true population characteristics estimated from the sample results each week are called _____________.

 inferences parameters estimates data

## Referring to Table 1-3, a listing of all hospitalized patients in this institution over a particular week would constitute the ________.

 sample population statistics parameters

 TABLE 1-4 The following are the questions given to Sheila Drucker-Ferris in her college alumni association survey. Classify each variable as categorical or numerical. If it is numerical, determine if it is discrete or continuous.

Referring to Table 1-4: Years since graduation: __________________.

 numerical discrete categorical numerical continuous

## Referring to Table 1-4: Major: ____________.

 categorical numerical continuous numerical discrete

## Referring to Table 1-4: Level of job satisfaction (High, Moderate, Low): _________.

 numerical continuous categorical numerical discrete.

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