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Exam 1: Data and Statistics

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Question 21

Multiple Choice

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Which of the following is an example of quantitative data?

A) the player's number on a baseball uniform
B) the serial number on a one-dollar bill
C) the part number of an inventory item
D) the number of people in a waiting line

E) B) and C)
F) All of the above

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Question 22

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Quantitative data that measure "how many" are ________; quantitative data that measure "how much" are ________.

A) interval; ratio
B) ratio; interval
C) continuous; discrete
D) discrete; continuous

E) B) and C)
F) A) and C)

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Question 23

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The term _____ is used to refer to the process of capturing, storing, and maintaining data.

Data collected over several time periods are _____ data.

Of 800 students in a university, 360, or 45%, live in the dormitories. The 800 is an example of _____.

Statistical inference _____.

For ease of data entry into a university database, 1 denotes the student is enrolled in an undergraduate degree program, 2 indicates the student is enrolled in a master's degree program, and 3 indicates the student is enrolled in a doctoral degree program. In this case, the data are which scale of measurement?

In a questionnaire, respondents are asked to record their age in years. Age is an example of a _____.

The term data warehousing is used to refer to the process of doing all of the following, except _____ the data.

In a data set, the number of observations will always be the same as the number of _____.

The entities on which data are collected are _____.

Which of the following is NOT a categorical variable?

Quantitative data _____.

Which of the following variables uses the interval scale of measurement?

A portion of the population selected to represent the population is called _____.

What organization developed the report, "Ethical Guidelines for Statistical Practice"?

A Scanner Data User Survey of 50 companies found that the average amount spent on scanner data per category of consumer goods was $387,325 (Mercer Management Consulting, Inc., April 24, 1997) . The $387,325 is an example of _____.

In a sample of 800 students in a university, 160, or 20%, are Business majors. Based on the above information, the school's paper reported, "20% of all students at the university are Business majors." This report is an example of _____.

All data collected in a study are referred to as the _____.

A statistics professor asked students in a class their ages. Based on this information, the professor states that the average age of students in the university is 21 years. This is an example of _____.