Column 1
Determine the Level of measurements:
A List of Badge numbers:
Nominal
What kind of data collection was used:
Researchers conducted a study to determine whether body mass index (BMI) influences the frequency of migraines. To conduct the study, researchers asked 162,576 people for the BMI's and the numbers of migraines they have per month.
Survey
Determine the Level of measurements:
The Voltage of a Battery
Ratio
Determine the Level of measurements:
The top 10 grossing films released each year.
Ordinal
Identify the Sample:
A study of the dietary habits of 20,000 men was conducted to find a link between high intakes of dairy products and prostate cancer.
The collection of the amount of Dairy consumed by 20,000 Men with Prostate Cancer to determine if there is a correlation.
What are the two branches of Statistics?
The Descriptive Branch
&
The Inferential Branch
Determine the Level of measurements:
The year of births for the runners in a marathon
Interval
Determine whether the numerical value is a parameter or a statistic:
A survey of 733 small business owners found that 17% have a current job opening
Statistic
Determine whether the numerical value is a parameter or a statistic:
At a college, 90% of the members of The Board Of Trustees approved the contract on the new president
Parameter
What is the Descriptive branch of the following quote:
A survey of 478 U.S. adults ages 18 to 29 found that 66% own a smartphone.
66% of 18 to 29 year old adults own a smartphone
Determine whether the data is Qualitative or Quantitative.
The final score on a video game
Quantitative
Statistics is the study of ___, ___, ___, ___ data to make a decision
Collecting, Organizing, Analyzing and Interpreting
Determine whether the data is Qualitative or Quantitative.
A list of Debit Card Pin numbers
Qualitative
Determine the sampling technique.
For quality assurance, every tenth machine is selected.
systematic
Determine the sampling technique.
A study on attitudes about smoking is conducted at a college. The students are divided into groups by class (Freshmen, etc) then a random sample is taken from each class and interviewed.
Stratisfied
Make an inference based on the following quote: "90% of the members of the Board of Trustees at a college approved the contract of the new president."
The board of trustees almost unanimously approved the contract of the new president.
Identify the Population:
A study of the dietary habits of 20,000 men was conducted to find a link between high intakes of dairy products and prostate cancer.
The collection of the amount of Dairy consumed by Men with Prostate Cancer to determine if there is a correlation.
What kind of experimental design is being used? Blocking or Matched-pair?
An experiment is performed to test the effects of a new drug on high blood pressure. The experimenter identifies 320 people ages 35-50 years old with high blood pressure to participate. The subjects are divided into equal groups according to age. Within each group, subjects are then randomly selected to be either the treatment or control group.
Match Pair
Identify the Sampling technique used:
a.) A Journalist goes to a campground to ask people how they feel about air pollution.
b.) How could this lead to a biased study?
a.) Convenience Sample
b.) People's opinions about air pollution will be biased because they are at a campground and obviously enjoy the outdoors/environment.
What Kind of Data collection was used:
Researchers conducted a study to determine whether taking a multivitamin daily decreases the risk of major cardiovascular events among men. To perform the study, researchers studied 14, 641 Men and had one group take a multivitamin daily and another group took a placebo daily.
Experiement