Identify whether the statement describes inferential statistics or descriptive statistics.
There is a relationship between smoking cigarettes and getting emphysema. correct answersinferential statistics
From past figures, it is predicted that 19% of the registered voters in California will vo...
STAT 231 MIDTERM REVIEW
Identify whether the statement describes inferential statistics or descriptive statistics.
There is a relationship between smoking cigarettes and getting emphysema. correct answersinferential statistics
From past figures, it is predicted that 19% of the registered voters in California will vote in the June primary. correct answersdescriptive statistics
Determine whether the data are qualitative or quantitative.
the number of seats in a movie theater correct answersquantitative
Identify the data set's level of measurement.
hair color of women on a high school tennis team correct answersnominal
Identify the data set's level of measurement.
number of milligrams of tar in 85 cigarettes correct answersratio
Identify the data set's level of measurement.
the ratings of a movie ranging from "poor" to "good" to "excellent" correct answersordinal
Identify the data set's level of measurement. the final grades (A, B, C, D, and F) for students in a statistics class correct answersordinal
Identify the data set's level of measurement.
the nationalities listed in a recent survey (for example, Asian, European, or Hispanic). correct answersnominal
Identify the data set's level of measurement.
manuscripts rated "acceptable" or "unacceptable" correct answersordinal
Identify the data set's level of measurement.
the lengths (in minutes) of the top ten movies with respect to ticket sales in 2007 correct answersratio
Decide which method of data collection you would use to collect data for the study. Specify either observational study, experiment, simulation, or survey.
A study where a drug was given to 23 patients and a placebo to another group of 23 patients to determine if the drug has an effect on a patient's illness correct answersexperiment
Decide which method of data collection you would use to collect data for the study. Specify either observational study, experiment, simulation, or survey.
A study where you would like to determine the chance getting three girls in a family of three children correct answerssimulation
Identify the sampling technique used.
Every fifth person boarding a plane is searched thoroughly. correct answerssystematic Identify the sampling technique used.
A researcher for an airline interviews all of the passengers on five randomly selected flights. correct answerscluster
Identify the sampling technique used.
A lobbyist for a major airspace firm assigns a number to each legislator and then uses a computer to randomly generate ten numbers. The lobbyist contacts the legislators corresponding to these numbers. correct answersrandom
Identify the sampling technique used.
A market researcher randomly selects 200 drivers under 55 years of age and 200 drivers over 55 years of age. correct answersstratified
Identify the sampling technique used.
A researcher randomly selected 25 of the nation's middle schools and interviewed all of the teachers at each school. correct answerscluster
Solve the problem.
The average age of the students in a statistics class is 22 years. Does this statement describe: correct answersdescriptive statistics?
Solve the problem.
Based on previous clients, a marriage counselor concludes that the majority of marriages that begin with
cohabitation before marriage will result in divorce. Does this statement describe inferential statistics or descriptive statistics? correct answersinferential statistics Solve the problem.
Classify the number of seats in a movie theater as qualitative data or quantitative data. correct answersquantitative data
Solve the problem.
Identify the level of measurement for data that are the temperature of 90 refrigerators. correct answersinterval
Solve the problem.
Identify the level of measurement for data that are the number of milligrams of tar in 79 cigarettes. correct answersratio
Solve the problem.
Identify the level of measurement for data that are the ratings of a movie ranging from poor to good to excellent. correct answersordinal
Solve the problem.
Identify the level of measurement for data that are the nationalities listed in a recent survey (for example, Asian, European, or Hispanic). correct answersnominal
Solve the problem.
The numbers of touchdowns scored by a major university in five randomly selected games are given below. Identify the level of measurement.
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