Exam 1: Introduction and Data Collection

A study attempted to estimate the proportion of Florida residents who were willing to spend more tax dollars on protecting the beaches from environmental disasters. Twenty-five hundred Florida residents were surveyed. What type of data collection procedure was most likely used to collect the data for this study?

A personal computer user survey was conducted. Number of personal computers owned is an example of a(n) _______numerical variable.

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

The Commissioner of Health in New York State wanted to study malpractice litigation in New York. A sample of 31 thousand medical records was drawn from a population of 2.7 million patients who were discharged during the year 1997. The true proportion of malpractice claims filed from the population of 2.7 million patients is a(n) ____________.

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 videocassette recorder 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 "In which year were you born?" are values from a

Which of the following is a discrete quantitative 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 videocassette recorder 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 much time do you use the videocassette recorder every week on the average?" are values from a

Student grades (A to F) are an example of continuous numerical data.

A personal computer user survey was conducted. The number of years using a personal computer is an example of a(n) _______numerical variable.

The answer to the question "How many hours on average do you spend watching TV every week?" is an example of a ratio scaled variable.

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(n)______ numerical variable.

Jared was working on a project to look at global warming and accessed an Internet site where he captured average global surface temperatures from 1866. Which of the four methods of data collection was he using?

An insurance company evaluates many numerical variables about a person before deciding on an appropriate rate for automobile insurance. The distance a person drives in a year is an example of a(n)_______ variable.

The amount of calories contained in a pack of 12-ounce cheese is an example of a discrete variable.

The answer to the question "What is your favorite color?" is an example of an ordinal scaled variable.

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

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