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Exam 1: Data and Statistics

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Question 31

Multiple Choice

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Data obtained from a nominal scale

A) must be alphabetic
B) can be either numeric or nonnumeric
C) must be numeric
D) must rank order the data

E) All of the above
F) None of the above

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Question 32

Multiple Choice

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Quantitative data refers to data obtained with a(n)

A) ordinal scale
B) nominal scale
C) either interval or ratio scale
D) only interval scale

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

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Question 33

Multiple Choice

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Income is an example of

Exhibit 1-3 Part of the data bank of a corporation is shown below. -Refer to Exhibit 1-3. Gender is an example of ________ data.

Statistical studies in which researchers do not control variables of interest are

Exhibit 1-5 The following is a frequency distribution of the monthly expenditures for long distance telephone service of 200 households in Chattanooga. -Refer to Exhibit 1-5. What is the cumulative relative frequency of the 2^nd class?

A recent issue of Fortune Magazine reported that the following companies had the lowest sales per employee among the Fortune 500 companies. a.How many elements are in the above data set? b.How many variables are in the above data set? c.How many observations are in the above data set? d.Name the variables and indicate whether they are categorical or quantitative.

On a street, the houses are numbered from 300 to 450. The house numbers are examples of

Exhibit 1-1 In a recent study based upon an inspection of 200 homes in Daisy City, 80 were found to violate one or more city codes. -Refer to Exhibit 1-1. The manager's statement that 40% of Daisy City's 2,000 homes are in violation of city codes is

In Excel, a worksheet that displays the data for the problem and shows the results of the analysis is

The process of analyzing sample data in order to draw conclusions about the characteristics of a population is called

Another name for "observations" is

Social security numbers consist of numeric values. Therefore, social security is an example of

Methods for developing useful decision-making information from large data bases is known as

In a sample of 800 students in a university, 240, or 30%, are Business majors. The 30% is an example of

Exhibit 1-4 In many universities, students evaluate their professors by means of answering a questionnaire. Assume a questionnaire is distributed to a class of 45 students. Students are asked to answer the following: 1. Sex 2. Race (Black, White, Other) 3. Age 4. Number of hours completed 5. Grade point average "6. My instructor is a very effective teacher " -Refer to Exhibit 4-1. How many observations are in this data set?

Arithmetic operations are inappropriate for

The following shows the temperatures (high, low) and weather conditions in a given Sunday for some selected world cities. For the weather conditions, the following notations are used: c = clear; cl = cloudy; sh = showers; pc = partly cloudy. a.How many elements are in this data set? b.How many variables are in this data set? c.How many observations are in this data set? d.Name the variables and indicate whether they are categorical or quantitative. e. For which variables are arithmetic operations appropriate and for which are they not appropriate?

Arithmetic operations are inappropriate for

Census refers to