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Multiple Choice



 This activity contains 28 questions.

Question 1.
The universe or "totality of items or things" under consideration is called:

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Question 2.
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:

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Question 3.
The portion of the universe that has been selected for analysis is called:

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Question 4.
A summary measure that is computed to describe a numerical characteristic from only a sample of the population is called:

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Question 5.
A summary measure that is computed to describe a characteristic of an entire population is called:

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Question 6.
The process of using sample statistics to draw conclusions about population parameters is called:

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Question 7.
Which of the four methods of data collection is involved when a person retrieves data from an online database?

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Question 8.
Which of the four methods of data collection is involved when people are asked to complete a questionnaire?

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Question 9.
Which of the four methods of data collection is involved when a person records the use of the Los Angeles freeway system?

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Question 10.
A focus group is an example of which of the four methods of data collection?

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Question 11.
Which of the following sampling methods is a probability sample?

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Question 12.
In which of the following sampling methods are the N individuals subdivided into separate subpopulations with a common characteristic?

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Question 13.
Obtaining too many males in your sample would be an example of which of the following types of survey errors?

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Question 14.
Which of the following is true about response rates?

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Question 15.
Which of the following is a reason that a manager needs to know about statistics?

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Question 16.
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?

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Question 17.

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?

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Question 18.
Referring to Table 1-1: A person's age is what type of variable?

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Question 19.
Referring to Table 1-1: A person's gender is what type of variable?

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Question 20.
Which of the following can be reduced by proper interviewer training?

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Question 21.

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 _______.

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Question 22.
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 _______.

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Question 23.
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 _______.

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Question 24.

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 _____________.

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Question 25.
Referring to Table 1-3, a listing of all hospitalized patients in this institution over a particular week would constitute the ________.

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Question 26.

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: __________________.

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Question 27.
Referring to Table 1-4: Major: ____________.

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Question 28.
Referring to Table 1-4: Level of job satisfaction (High, Moderate, Low): _________.

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