Level of Measurements
Types of phones: Sony, Motorola, Nokia, Samsung, Google, Apple
Nominal
Determine the correct data type (quantitative or qualitative). Indicate whether quantitative data are continuous or discrete:
Weights of sumo wrestlers
Quantitative Continuous
Describe the Population in the study below.
A study was conducted at a local college to analyze the average cumulative GPA’s of students who graduated last year. Fill in the letter of the phrase that best describes each of the items below.
All students who graduated from the college last year
Determine the type of sampling used (simple random, stratified, systematic, cluster, or convenience).
A high school counselor uses a computer to generate 50 random numbers and then picks students whose names correspond to the numbers.
Simple Random
A team of researchers is testing the effectiveness of a new HPV vaccine. They randomly divide the subjects into two groups.
Group 1 receives a placebo, and Group 2 receives new HPV vaccine.
The patients in the study do not know which group they are in.
Which is the treatment group?
Group 2
The following is what level of measurement? (Nominal, Ordinal, Interval, or Ratio)
Scores on a 100 point test: 80, 68, 72, 91, 95, ...
Ratio
Determine the correct data type (quantitative or qualitative). Indicate whether quantitative data are continuous or discrete:
The distance it is from your home to the nearest grocery store
Quantitative Continuous
Describe the Sample in the study below.
A study was conducted at a local college to analyze the average cumulative GPA’s of students who graduated last year. Fill in the letter of the phrase that best describes each of the items below.
A group of students who graduated from the college last year, randomly selected
Determine the type of sampling used (simple random, stratified, systematic, cluster, or convenience).
A high school educational researcher interviews 50 high school female teachers and 50 high school male teachers.
Stratified Sampling
A team of researchers is testing the effectiveness of a new HPV vaccine. They randomly divide the subjects into two groups.
Group 1 receives a placebo, and Group 2 receives new HPV vaccine.
The patients in the study do not know which group they are in.
Which is the control group (if there is one)?
Group 1
The following is what level of measurement? (Nominal, Ordinal, Interval, or Ratio)
High temperatures this week: 71, 68, 62, 74, 65, ...
Interval
Determine the correct data type (quantitative or qualitative). Indicate whether quantitative data are continuous or discrete:
The number of pairs of shoes you own
Quantitative Discrete
Describe the Parameter in the study below.
A study was conducted at a local college to analyze the average cumulative GPA’s of students who graduated last year. Fill in the letter of the phrase that best describes each of the items below.
The average cumulative GPA of students who graduated from the college last year
Determine the type of sampling used (simple random, stratified, systematic, cluster, or convenience).
A pollster interviews all human resource personnel in five different high-tech companies.
Cluster Sampling
A team of researchers is testing the effectiveness of a new HPV vaccine. They randomly divide the subjects into two groups.
Group 1 receives a placebo, and Group 2 receives new HPV vaccine.
The patients in the study do not know which group they are in.
Is this study blind, double blind, or neither?
Blind
The following is what level of measurement? (Nominal, Ordinal, Interval, or Ratio)
List of the best fast food restaurants: McDonalds, Burger King, Taco Bell, Wendy's,...
Ordinal
Determine the correct data type (quantitative or qualitative). Indicate whether quantitative data are continuous or discrete:
The type of calculator you use
Qualitative
Describe the Statistic in the study below.
A study was conducted at a local college to analyze the average cumulative GPA’s of students who graduated last year. Fill in the letter of the phrase that best describes each of the items below.
The average cumulative GPA of students in the study who graduated from the college last year
Determine the type of sampling used (simple random, stratified, systematic, cluster, or convenience).
A student interviews classmates in his algebra class to determine how many pairs of jeans a student owns, on the average.
Convenience Sampling
A team of researchers is testing the effectiveness of a new HPV vaccine. They randomly divide the subjects into two groups.
Group 1 receives a placebo, and Group 2 receives new HPV vaccine.
The patients in the study do not know which group they are in.
What is the Treatment Variable?
Did the subject get a placebo or new HPV vaccine
The following is what level of measurement? (Nominal, Ordinal, Interval, or Ratio)
Credit Scores: 720, 650, 480, 300, ...
Interval
(Minimum credit score is 300)
Determine the correct data type (quantitative or qualitative). Indicate whether quantitative data are continuous or discrete:
The number of classes you take per school year.
Quantitative Discrete
Describe the Variable in the study below.
A study was conducted at a local college to analyze the average cumulative GPA’s of students who graduated last year. Fill in the letter of the phrase that best describes each of the items below.
The cumulative GPA of one student who graduated from the college last year
Determine the type of sampling used (simple random, stratified, systematic, cluster, or convenience).
A medical researcher interviews every third cancer patient from a list of cancer patients at a local hospital.
Systematic Sampling
A team of researchers is testing the effectiveness of a new HPV vaccine. They randomly divide the subjects into two groups.
Group 1 receives a placebo, and Group 2 receives new HPV vaccine.
The patients in the study do not know which group they are in.
What is the Response Variable?
Did the subject get HPV or not.