The science of planning studies and experiments; obtaining data; and then organizing, summarizing, presenting, analyzing, and interpreting those data and then drawing conclusions based on them.
What is Statistics?
100
Car models are an example of what level of measurement?
Nominal.
100
Numerical measurement describing some characteristic of a Sample.
What is Statistic?
100
What is the exact value that is 39% of 1018?
397.02
100
Before and after and Using twins in an experiment is an example of what design?
What is Matched Pair Design?
200
Numerical measurement describing some characteristic of a population.
What is Parameter?
200
Heights of buildings are an example of what level of measurement?
What is Ratio?
200
We simply use results that are very easy to get.
What is Convenience Sampling?
200
What percent of 2098 is 493?
23.499%
200
When taking of the wrappers of a water bottle then asking people to say which one is better is an example of this design?
What is Blind?
300
we observe and measure specific characteristics, but we do not attempt to modify the subjects being used.
What is an Observational Study?
300
Temperatures are an example of what level of measurement?
What is Interval?
300
Occurs in an experiment when the investigators are not able to distinguish among the effects of different factors.
What is Confounding?
300
There are 27 teachers at Luke Skywalker university. 17 teachers wear glasses and 6 teachers wear contact lenses and 2 teachers wear bifocals. What is the percent of teachers that need glasses? Round to the nearest tenth.
What is 92.59%
300
If we used Mary-Kate and Ashley Olsen (they are twins) in an experiment to compare results what design is being used?
What is Matched Pair Design?
400
We first divide the population area into sections. Then we randomly select some of those sections and choose all members from those selected sections.
What is Cluster Sampling?
400
Political Affiliation is an example of what level of measurement?
What is Nominal?
400
We subdivide the population into at least two different subgroups so that subjects within the same subgroups share the same characteristics. Then we draw a sample from each subgroup.
What is Stratified Sampling?
400
24 students in a class took an algebra test. If 18 students passed the test, what percent did not pass?
25% of students did not pass
400
If a sample is picked by selecting every 5th person what type of sampling is being used?
What is Systematic Sampling?
500
We apply some treatment and then proceed to observe its effects on the subjects.
What is an Experiment?
500
The letter grade you receive in a class is an example of what level of measurement?
What is Ordinal?
500
Data are observed, measured, and collected at one point in time, not over a period of time.
What is a Cross-sectional Study?
500
Bob the builder was on air from 1996 to 2004. Then it got replace by Handy Manie in 2006. It lasted until 2010. How much longer did it last? Put your answer in percentage.
What is 200%?
500
Picking the best players from each side to play against each other, making sure it is even, is an example of which design?