A
Type of sample in which the respondents themselves decide whether or not to be included.
What is a voluntary response sample?
The science of planning studies and experiments, collecting data, and then organizing, summarizing, presenting, analyzing, interpreting, drawing conclusions, an making decisions based on the data.
What is Statistics?
Part of members selected from a population.
What is a Sample?
Anything that is a voluntary response or self selected is ____.
What is Biased?
Determine whether the given event is impossible; possible, but very unlikely; or possible and likely.
Janet rolled a pair of dice and got a total of 14.
Imposible
Uses results that are quick ad easy to get.
What is Convenience sampling?
Select some starting point and then select every kth element in the population.
What is Systematic sampling?
The two sources of data.
What is Primary and Secondary data?
In a random sample each individual member has a ____ chance of being chosen.
What is equal?
Determine which of the four levels of measurement is most appropriate.
The teacher of a class of third graders records the percentage that each student got correct of the last science test.
Ratio
Level of measurement with a natural zero starting point; data values can be meaningfully expressed.
What is a Ratio?
Applying some treatment and then observing its effects on the subjects.
What is an experiment?
The two types of Quantitative data.
What is Discrete and Continuous data?
If results could easily occur by chance then they are not ____ ____ but, if the likelihood of getting the results is so small then the results are.
What is Statistically Significant?
Determine whether the given value is a statistic or a parameter.
The average atomic weight of all elements in the periodic table is 134.355amu.
Parameter
This is when the experimenter is not able to distinguish between the effects of different factors.
What is Confounding?
The two main methods of collecting data.
What is observational study and experimentation?
Occurs when an untreated subject reports an improvement in symptoms.
What is the placebo effect?
In a ____ ____ data is collected from the past by going back in time.
What is a Retrospective study?
The Hawaii State Senate held hearings while considering a law requiring that motorcyclists wear helmets. Some motorcyclists testified that they ha been in crashes in which helmets would not have been helpful. Which important group was not able to testify?
The motorcyclists who were killed.
The three different types of observational studies.
What are Cross-Sectional, Retrospective, and Prospective studies?
Type of experiment design with the least human error; neither experimenter nor subject know whether they're receiving the treatment or the placebo.
What is Double Blinding?
Ordinal, Ratio, Nominal, Interval
What are the four levels of measurement?
Randomization, ____, Double Blinding, and ____ are all examples of experiment designs.
What is Replication?
What is Blinding?
42% of 734 adults surveyed said that they eat vegetables with dinner every night. What is the number of those surveyed who do not eat vegetables with dinner every night?
426