To learn about a large group (population) by examining data from some of its members (sample).
What is the common Goal of Statistics?
100
This level of measurement does have meaningful calculations, such as a difference, but does not have a natural zero point.
What is an Interval level of measurement?
100
An example of this type of study (Observational or Experimental) is: A Gallup poll randomly selected adults and asked them whether they smoke or not. Among the adults who responded to the survey 21% said that they did smoke.
What is an Observational Study?
100
In a large lecture room class of 300 students, a sample of 10 was taken to determine the male/female make up of the class.
What is and example of a misuse of statistics of a Small Sample?
200
This phase of a study is where the graphing, exploring of data, and application of statistical methods occur.
What is the Analysis phase of a Statistical Study?
200
This type of data corresponds to possible values that are either a finite number or a countable number.
What is Discrete Data?
200
The HIV trials Network is conducting this design of an experimental study to test the effectiveness of two different HIV vaccines. Subjects will consist of 80 pairs of twins. for each pair of twins, one of the subjects will be treated with the DNA vaccine and the other twin will be treated with the ADV vaccine.
What is a Blinding design of experiment?
200
This pitfall is represented when gathering data from South University students by requesting all students to go online and complete the questionnaire and only 65% of the student body responds.
What is Missing Data or Nonresponse?
300
This is the complete collection of all measurements that are being considered.
What is the Population?
300
Questions on a survey are measured by a score of integers 1 thru 5, with 1 representing strongly disagree and 5 strongly agree is a level of which measurement
What is an example of Ordinal Measurement?
300
Data are collected from a past time period by going back in time through an examination of historical records/documents to interviews to name a few.
What is a Retrospective Study?
300
At an airport security checkpoint every 10th individual is more thoroughly searched than the others.
What is an example of a Systematic method?
400
This is the collection of data from every member of the population where as this is a sub collection of members selected from a population.
What is a Census? What is a Sample?
400
Data that is numerical and data that is categorical.
What is Quantitative Data and Qualitative Data?
400
This has occurred, and the experimental positive female results are ruined when new lightweight running shoes are tested on a group of female runners vs the male group of runners with their own shoes.
What is Confounding?
500
General terms of a measurement describing a characteristic of the Population? Sample?
What is a Parameter? What is a Statistic?
500
The amount of water pumped from a pond per day, the temperature on a thermometer, or the mean weight of 100 flour sacks are all of this type of data and this type of measurement.
What is Continuous Data? What is a Ratio level of Measurement?
500
This type of error occurs when a interviewer inadvertently leads a subject to select one answer over another.
What is Nonsampling Error?
500
A sampling method in which a source of bias is introduced by self selection sampling.