Statistics 2342- Chapter 1 Review
___ occurs when a study tends to frame observations
Bias
For budget purposes, a college president needs to know the average length of tenure of faculty at their school.
Census
Interview each member of entire population
Census
A market researcher interviews each member from each of 15 randomly chosen math classes
Cluster
Additional variables that effect the outcome but were not measured in a study are known as
Confounding Variable
Heights of sunflowers in a garden
Continuous
Pounds gained by a person in your class during the first month of the semester are an example of which type of data
Continuous
IQ scores report in whole numbers are an example of which type of data
Discrete
The # of questions answered correctly by various students on a test is an example of what type of data
Discrete
If a participant begins a study but fails to complete it
Dropout
In order for researchers to obtain a subject for their study, they must first get their
Informed Consent
When working with humans or animals. The ___ requires extensive proof that no physical or mental harm will occur to subject study.
Institutional Review Board
An underwriter compares 3 weather reports from hurricane to compare for common errors
Meta-Analysis
Religious affiliations are an example of which type of data
Neither
Suits of playing cards are an example of which type of data
Neither
A subject who finished the study but did not follow the directions they were given is called a
Non-Adhere
A ___ might be as simple as a typo in the data set, which is also known as a processing error
Non-Sampling Error
A gas station owner wants to identify if her customer sharing grapes
Observational
___ are created when there is a problem with either participation, or each of those are chosen for the study
Participation Bias
The # of times the students of yours order take out in a week
Population
A non-sampling error is when the results from a study are stated incorrectly. An error of this form is called a
Processing Error
Eye color are an example of which type of data
Qualitative
Types of motorcycles (football jersey) in a show (game) are an example of which type of data
Qualitative
The ranking of 3 books on the New York Times Best Sellers List
Qualitative, Neither Ordinal
A geneticist is studying the relationship between eye color and has hair color. She is collecting data using a questionaire.
Qualitative, Neither, Nominal
A survey response to are you wearing absent
Qualitative, Neither, Nominal
A new feature on a CD player did not work properly. The manufacturer knows if this caused users any problems. The users were asked to select one of the categories given below: 1) not a problem 2) Not very serious 3) Profiecient 4) Excellent
Qualitative, Neither, Ordinal
Amount of annual rainfall in Miami over the last 5 years are an example of which type of data
Quantitative
The temperature in Farenheight of a US City
Quantitative, Continuous, Interval
The amount of time that 40 randomly selected people spent studying for a test
Quantitative, Continuous, Ratio
Birth year of your family
Quantitative, Discrete, Interval
The IQ scores of students @ a local college
Quantitative, Discrete, Interval
A teacher randomly selects 100 employees each month
Quantitative, Discrete, Ratio
The population of countries that belongs to United Nations?
Quantitative, Discrete, Ratio
One form of ___ is in the wording of survey questions a researcher has given to participants
Researcher Bias
___ can occur in the sampling frame includes certain # of populations
Sampling Error
A school administrator chooses one person @ random from each freshman dormitory
Stratified
First pop subdivided by class. Then a random generator selected 25 member form each class
Stratified
The __ receives a placebo
control group
In an _____ experiment, only the participant does not know whether they have been placed in an experimental group
single-blinded
