stats checkpoint 1
If an outcome is favored over another, we call this ...
bias
Interview each member of the entire population.
census
A market researcher interviews each member from each of the ten randomly chosen math classes at a university.
cluster sampling
Heights of sunflowers in a garden are an example of which type of data?
continuous
A statistics student interviews the last fifty members to leave.
convenience sampling
In order to save time, a political strategist hand-selects the last fifteen members to leave to be studied in depth.
convenience sampling
The numbers of different colors various boxes of crayons have are an example of which type of data?
discrete
The numbers of each color of jelly beans in a jar (assuming they are all whole) are an example of which type of data?
discrete
In a ... experiment, neither clinicians nor subjects know whether the subject will receive a treatment.
double blind
If too many participants decide to ... of an experiment, then the sample may no longer represent the population.
dropout
... occurs when only people greatly interested in a subject participate in a survey.
nonresponse bias
A coffee shop manager wants to find out whether customers are satisfied with the service they receive.
observational
A random number generator is used to choose ten metropolitan areas. Then a political strategist collects data from each person in these metropolitan areas.
cluster sampling
Heights of men entering the U.S. Marine Corps are an example of which type of data?
continuous
A college president randomly generates student identification numbers in order to conduct a survey about campus housing.
simple random sampling
A statistics student selects ten classmates by placing each name in a box and randomly selecting the names.
simple random sampling
A scientist chooses twenty people at random from each math class.
stratified sampling
First, the population is subdivided by city. Then a crime researcher uses a random number generator to select fifty members from each city to study.
stratified sampling
A new painkiller is studied. A group of people with chronic pain participating in the study are administered the drug. It is not identified prior to the study what is causing their pain, and the source of their pain impacts their response to the drug.
confounding variable
When many participants in a study have strong opinions, ... could occur.
participation bias
The high school GPAs of all the parents of your classmates.
population
72% of all students at the local university eat out more than twice a week.
population parameter
identify the population and sample - The heights of 4 out of the 37 cucumber plants at Mr. Lonardo's greenhouse.
population: the 37 cucumber plants sample: the 4 cucumber plants
Errors that appear when data are entered inattentively are examples of ...
processing errors
Eye colors are an example of which type of data?
qualitative
Letter grades on a math exam are an example of which type of data?
qualitative
Goals scored during a soccer game are an example of which type of data?
quantitative
Sales in dollars made by a sales person are an example of which type of data?
quantitative
If a researcher influences the results of the study to favor a certain outcome, this is called ...
researcher bias
... occurs when a participant gives a response that they think is desired by a researcher.
response bias
The ages of a sample of 37 parents of your classmates.
sample
A recent poll of 2707 home owners in Michigan showed that the average price of their houses is $265,000
sample statistic
A recent poll of 29352935 corporate executives showed that the average price of their cars is $27,100$27,100.
sample statistic
If a drink preferences survey is conducted near a wine shop, it may result in ...
sampling bias
A scientist interviews every fifteenth member from the entire population.
systematic sampling
After a biologist has assigned identification numbers to a population, he picks a random starting point and chooses every fifteenth member.
systematic sampling
identify the sample - The number of times 12 out of 23 students on your floor order buffalo wings in a week.
the 12 students on your floor
identify the population - The number of times 4 out of 37 students on your floor order take-out in a week.
the 37 students on your floor
