An Overview
Data Classification
Experimental Design
Which one is it?
Is it Random?
100
This type of research gathering is more popular than it's counterpart, Population, due to it's practical size.
What is a sample?
100
This data is used when classifying the colors of cars in a used car lot.
What is Qualitative data?
100
Which method of data collection would you use for a study of salaries of college professors at UW-Platteville?
What is taking a census?
100
Identify the level of measurement of data that are the numbers on the shirts of a girl's soccer team. Ordinal, Nominal, Interval, or Ratio?
What is Nominal?
100
A researcher randomly selects and interview fifty male and female teachers. Is it random sampling? If not, what type of sampling is it?
No, it is Stratified.
200
This type of collection is based off all possible outcomes, responses or counts of interest and is somewhat harder to collect.
What is population?
200
This data is used when classifying the number of negative reviews received by Amazon customers.
What is Quantitative data?
200
Every fifth teenager entering a concert is checked for a legal ID, which type of sampling technique is used?
What is Systematic?
200
Classify the number of seats in a movie theater as qualitative or quantitative?
What is Quantitative?
200
UW Madison wants to know what the average salary of their alumni is. They have 30,000 members in their alumni association. Each person is sent a survey. From the 30,000 questionaires, 8,500 are randomly selected and averaged. Based on 8,500 responses selected, UW-Madison concluded that the annual salary of its alumni was around $75,000 per year. Is this a random sampling? If not, what type of sampling is it?
Yes!
300
The average salary of all General Motors workers is $38,000. This value describes THIS type of collecting parameter.
What is population?
300
This level of measurement would be used for ratings of movies from a rating of poor to good to excellent.
What is Ordinal?
300
At a local community college, five statistics classes are randomly selected and all of the students from each class are interviewed. What type of sampling technique is used?
What is Cluster?
300
You survey every student in this class asking what their favorite book is, and how many pages are in that book. Identify the level of measurement for data that compare the number of pages in each favorite book. Nominal, Ordinal, Interval, or Ratio?
What is Ratio?
300
A lobbyist for a major airspace firm assigns a number to each legislator and then uses a computer to randomly generate ten numbers. The lobbyist contacts the legislators corresponding to these numbers. Is this a random sampling technique?If not, what type of sampling is it?
Yes!
400
The average age of the students in your statistics class is 17 years old. This statement describes THIS branch of statistics.
What is Descriptive statistics?
400
This level of measurement for data is used to measure the amount of fat (in grams) in 24 different flavors of Oreo cookies.
What is Ratio?
400
The names of 50 contestants are written on 50 cards. The cards are placed in a bag, and three names are picked from the bag. What type of sampling technique is this?
What is Random?
400
Identify the level measurement for data that are a list of zip codes. Nominal, Ordinal, Interval, or Ratio?
What is Nominal?
400
A researcher for a publisher selects 25 of the nation's middle schools and interview all of the teachers at each school. Is this a random sampling technique? If not, what type of sampling is it?
No, it is a cluster.
500
Based on survey results, it is predicted that 84% of Apple product users, will buy the new iPhone when it is released. This statement describes ______ statistics.
What is Inferential statistics?
500
The average daily temperatures in Mauston are recorded on five randomly selected days. 28 31 27 32 28. THIS type of level of measurement was used to record these temperatures.
What is Interval?
500
A sample consists of every 25th student from a group of 1000 students. Which sampling technique is used?
What is Systematic?
500
There is a relationship between smoking cigarettes and getting emphysema. Does this statement describe: Descriptive statistics or Inferential statistics?
What is Inferential statistics?
500
A market researcher randomly selects 200 drivers under 30 years of age and 200 drivers over 30 years of age. Is this a random sampling technique? If not, what type of sampling is it?
No, it is stratified.
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