Chapter 1 ReviewChapter 1 Review

Test Wednesday Aug. 18Test Wednesday Aug. 18

QuestionQuestion

Explain the difference between a sample Explain the difference between a sample and a population.and a population.

AnswerAnswer

A population is the collection of all A population is the collection of all elements in a population. A sample is a elements in a population. A sample is a subset of the elements in the population.subset of the elements in the population.

QuestionQuestion

There is a relationship between smoking There is a relationship between smoking cigarettes and getting emphysema. Does cigarettes and getting emphysema. Does this statement describe descriptive this statement describe descriptive statistics or inferential statistics?statistics or inferential statistics?

AnswerAnswer

Inferential statisticsInferential statistics

QuestionQuestion

Classify the colors of automobiles on a Classify the colors of automobiles on a used car lot as qualitative data or used car lot as qualitative data or quantitative data.quantitative data.

AnswerAnswer

Qualitative DataQualitative Data

QuestionQuestion

Classify the number of complaint letters Classify the number of complaint letters received by the United States Postal received by the United States Postal Service in a given day as qualitative or Service in a given day as qualitative or quantitative data.quantitative data.

AnswerAnswer

Quantitative DataQuantitative Data

QuestionQuestion

Identify the level of measurement for data Identify the level of measurement for data that can be classified according to color.that can be classified according to color.

AnswerAnswer

NominalNominal

QuestionQuestion

Identify the level of measurement for data Identify the level of measurement for data that are the number of milligrams of tar in that are the number of milligrams of tar in 45 cigarettes.45 cigarettes.

AnswerAnswer

RatioRatio

QuestionQuestion

Identify the level of measurement for data Identify the level of measurement for data that can be classified by marriage status that can be classified by marriage status (married, single, or divorced).(married, single, or divorced).

AnswerAnswer

NominalNominal

QuestionQuestion

Identify the level of measurement for data Identify the level of measurement for data that are a list of 1235 social security that are a list of 1235 social security numbers.numbers.

AnswerAnswer

NominalNominal

QuestionQuestion

Identify the level of measurement for data Identify the level of measurement for data that are the ratings of a movie ranging that are the ratings of a movie ranging from poor to good to excellent.from poor to good to excellent.

AnswerAnswer

OrdinalOrdinal

QuestionQuestion

Identify the level of measurement for data Identify the level of measurement for data that are the final grades that are the final grades

(A, B, C, D, and F) for students in a (A, B, C, D, and F) for students in a statistics class.statistics class.

AnswerAnswer

OrdinalOrdinal

QuestionQuestion

Identify the level of measurement for data Identify the level of measurement for data that are the annual salaries of all teachers that are the annual salaries of all teachers in California.in California.

AnswerAnswer

RatioRatio

QuestionQuestion

Identify the level of measurement for data Identify the level of measurement for data that are the amount of fat (in grams) in 24 that are the amount of fat (in grams) in 24 cookies.cookies.

AnswerAnswer

RatioRatio

QuestionQuestion

Identify the level of measurement for data Identify the level of measurement for data that are the years the summer Olympics that are the years the summer Olympics were held in the United States.were held in the United States.

AnswerAnswer

IntervalInterval

QuestionQuestion

The average daily temperature (in degrees The average daily temperature (in degrees Fahrenheit) on five randomly selected Fahrenheit) on five randomly selected days are given below. Identify the level of days are given below. Identify the level of measurement.measurement.

28 31 27 32 2828 31 27 32 28

AnswerAnswer

IntervalInterval

QuestionQuestion

Which method of data collection would you Which method of data collection would you use to collect data for a study where a use to collect data for a study where a drug was given to 10 patients and a drug was given to 10 patients and a placebo to another group of 10 patients to placebo to another group of 10 patients to determine if the drug has an effect on a determine if the drug has an effect on a patient's illness?patient's illness?

AnswerAnswer

Perform an experimentPerform an experiment

QuestionQuestion

Thirty-five sophomores, 26 juniors and 41 Thirty-five sophomores, 26 juniors and 41 seniors are randomly selected from 523 seniors are randomly selected from 523 sophomores, 365 juniors and 431 seniors sophomores, 365 juniors and 431 seniors at a certain high school. Identify which at a certain high school. Identify which sampling technique is used.sampling technique is used.

AnswerAnswer

StratifiedStratified

QuestionQuestion

At a local community college, five statistics At a local community college, five statistics classes are randomly selected and all of classes are randomly selected and all of the students from each class are the students from each class are interviewed. Identify which sampling interviewed. Identify which sampling technique is used.technique is used.

AnswerAnswer

ClusterCluster

QuestionQuestion

A researcher randomly selects and interviews fifty male and fifty female teachers. Identify which sampling technique is used.

AnswerAnswer

StratifiedStratified

QuestionQuestion

In a recent television survey, participants In a recent television survey, participants were asked to answer "yes" or "no" to the were asked to answer "yes" or "no" to the question "Are you in favor of the death question "Are you in favor of the death penalty?" Six thousand five hundred penalty?" Six thousand five hundred responded "yes" while 4800 responded responded "yes" while 4800 responded "no". There was a fifty-cent charge for the "no". There was a fifty-cent charge for the call. Identify which sampling technique call. Identify which sampling technique was used.was used.

AnswerAnswer

ConvenienceConvenience

QuestionQuestion

A lobbyist for a major airspace firm A lobbyist for a major airspace firm assigns a number to each legislator and assigns a number to each legislator and then uses a computer to randomly then uses a computer to randomly generate ten numbers. The lobbyist generate ten numbers. The lobbyist contacts the legislators corresponding to contacts the legislators corresponding to these numbers. Identify which sampling these numbers. Identify which sampling technique is used.technique is used.

AnswerAnswer

Simple random sample (SRS)Simple random sample (SRS)

QuestionQuestion

A sample consists of every 25th student from a group of 1000 students. Identify which sampling technique is used.

AnswerAnswer

SystematicSystematic

QuestionQuestion

A market researcher randomly selects 200 A market researcher randomly selects 200 drivers under 30 years of age and 200 drivers under 30 years of age and 200 drivers over 30 years of age. Identify drivers over 30 years of age. Identify which sampling technique is used.which sampling technique is used.

AnswerAnswer

StratifiedStratified