Which situation describes a dataset that contains an outlier?(1 point)
Responses
the daily weekday commute time of a worker who leaves at 7:30 pm each day
the daily weekday commute time of a worker who leaves at 7:30 pm each day
the daily revenue of a mechanic shop, including the day they are closed
the daily revenue of a mechanic shop, including the day they are closed
the ages of students enrolled in a sixth-grade class
the daily revenue of a mechanic shop, including the day they are closed
Which of the following is an example of a loaded question?(1 point)
Responses
Which candidate do you support for city council?
Which candidate do you support for city council?
Do you prefer this beloved fantasy series or that less acclaimed mystery novel?
Do you prefer this beloved fantasy series or that less acclaimed mystery novel?
What is your favorite candy flavor?
A well-known supermarket in the U.S. wants to determine what percent of storegoers are vegetarian. They randomly survey 5 people every hour at one of their grocery stores for a day. What type of bias exists in this survey?(1 point)
Responses
Question Bias
Question Bias
Volunteer Response Bias
Volunteer Response Bias
Selection Bias
Selection Bias
Which of the following is the best definition of outlier?(1 point)
Responses
a value that exceeds the number of suitable data points needed for the model
a value that exceeds the number of suitable data points needed for the model
a value that skews results because it is much higher or lower than the other data
a value that skews results because it is much higher or lower than the other data
a value that must be excluded from the data because it is inaccurately calculated
a value that skews results because it is much higher or lower than the other data
What is random selection?(1 point)
Responses
an experiment in which each participant has an equal probability of occurrence
an experiment in which each participant has an equal probability of occurrence
a data influence that is not accounted for in the study
a data influence that is not accounted for in the study
the part of the sample that does not receive treatment and is used as a baseline to compare findings
an experiment in which each participant has an equal probability of occurrence
What is the first step in building a model?(1 point)
Responses
Collect real-life data.
Collect real-life data.
Define the objective and variable(s) of interest.
Define the objective and variable(s) of interest.
Identify the statistical question, hypothesis, or theory.