Statistic vs Parameter
In a study of flights from JFK to LAX, 48 flights are randomly selected and the average arrival time is 8.9 mins late.
What is a Statistic?
Subjects are randomly selected and their heights are recorded in a survey.
What is continuous?
The U.S. News & Reports provide rankings of colleges and this year Princeton, Harvard, and Germanna Community College rank 1, 2, 3, respectively.
What is Ordinal?
An author conducted a survey on driving habits by randomly selecting three different classes and surveying all student as they left those classes.
What is Cluster sampling?
A study conducted of all 2223 passengers aboard the Titanic when it sank.
What is a parameter?
In a study of service times at Wendy's drive up window, the numbers of cars serviced each hour of several days are recorded.
What is Discrete?
For an election, ABC News conducted an exit poll in which voters are asked to identify the political party that they are registered with (Republican, Democratic, Independent, and so on).
What is Nominal?
The author collected sample data by randomly selecting five books from each of the categories of science, fiction, and history. The numbers of pages in the books were then identified.
What is Stratified?
According to the Census Bureau, the total number of houses in the US is 132,802,859.
What is a parameter?
The Clerk of the US House of Representatives records the number of representatives present at each session.
What is Discrete?
In a study of fast food service times, a researcher records the time intervals of drive up customers beginning when they place their order and ending when they receive their order.
What is Ratio?
The New York State Department of Transportation evaluated the quality of the New York Thruway by testing core samples collected at regular intervals of 1 mile.
What is Systematic Sampling?
A recent California Health Survey included 2799 adolescent residents of California.
What is a Statistic?
Students in a statistics class record the exact lengths of times that they use their phone in class.
What is continuous?
Baseball statistician Bill James records the years in which baseball World Series is won by a team from the National League.
What is Interval?
In an experiment to test a new drug, the subjects were randomly partitioned into two group: one received the placebo and the other the drug.
What is Random sampling?
The average atomic weight of all elements in the periodic table is 134.355 atomic mass units.
What is a parameter?
Exact lengths of feet of high school students.
What is continuous?
In 1936, Literary Digest magazine mailed questionnaires to 10 mullion people and obtained
2, 266,566 responses.
What is Convenience?