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Practice Problems
Differentiating Between
Inferring Describing
Problem #1
You have been asked to examine 2010 US census data to determine the average levels of education attained.
Options:
• Less than high school,
• High school,
• Some college,
• Bachelors,
• Some graduate school,
• Master’s or Equivalent
• Doctorate or Equivalent
Advance the slide to see the options
You have been asked to examine 2010 US census data to determine the average levels of education attained.
Options:
• Less than high school,
• High school,
• Some college,
• Bachelors,
• Some graduate school,
• Master’s or Equivalent
• Doctorate or Equivalent
Inferring Describing
Which is it?
Advance the slide to see the answer
You have been asked to examine 2010 US census data to determine the average levels of education attained.
Options:
• Less than high school,
• High school,
• Some college,
• Bachelors,
• Some graduate school,
• Master’s or Equivalent
• Doctorate or Equivalent
Inferring Describing
Which is it?
Advance the slide to see the explanation
You have been asked to examine 2010 US census data to determine the average levels of education attained.
Options:
• Less than high school,
• High school,
• Some college,
• Bachelors,
• Some graduate school,
• Master’s or Equivalent
• Doctorate or Equivalent
Inferring Describing
Which is it?
We are dealing with everyone (a population) in a census.
Explanation
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Problem #2
A school district superintendent South of Minneapolis wants to determine the degree to which parents feel well-served by the school counseling personnel across the district. You have been asked to randomly select a sample of 100 parents and administer to them a survey that deals with their satisfaction with school counseling services.
Advance the slide to see the options
A school district superintendent South of Minneapolis wants to determine the degree to which parents feel well-served by the school counseling personnel across the district. You have been asked to randomly select a sample of 100 parents and administer to them a survey that deals with their satisfaction with school counseling services.
Inferring Describing
Which is it?
Advance the slide to see the answer
A school district superintendent South of Minneapolis wants to determine the degree to which parents feel well-served by the school counseling personnel across the district. You have been asked to randomly select a sample of 100 parents and administer to them a survey that deals with their satisfaction with school counseling services.
Inferring Describing
Which is it?
Advance the slide to see the explanation
A school district superintendent South of Minneapolis wants to determine the degree to which parents feel well-served by the school counseling personnel across the district. You have been asked to randomly select a sample of 100 parents and administer to them a survey that deals with their satisfaction with school counseling services.
Inferring Describing
Which is it?
Advance the slide to the next problem
We are inferring or generalizing from a sample of 100 parents’ to an entire school district of parents’ opinions about district
counseling services (population) .
Explanation
Problem #3
The director of a health clinic has asked you to help her analyze data from the results of patient systolic blood pressure readings. Before you begin your analysis, you decide to find out which are the most common scores from just her data set of only 15 people.
Advance the slide to see the options
Patients Systolic Blood Pressure1 75
2 85
3 85
4 95
5 95
6 97
7 97
8 97
9 102
10 102
11 102
12 102
13 110
14 115
15 115
The director of a health clinic has asked you to help her analyze data from the results of patient systolic blood pressure readings. Before you begin your analysis, you decide to find out which are the most common scores from just her data set of only 15 people.
Inferring Describing
Which is it?
Advance the slide to see the answer
Patients Systolic Blood Pressure1 75
2 85
3 85
4 95
5 95
6 97
7 97
8 97
9 102
10 102
11 102
12 102
13 110
14 115
15 115
The director of a health clinic has asked you to help her analyze data from the results of patient systolic blood pressure readings. Before you begin your analysis, you decide to find out which are the most common scores from just her data set of only 15 people.
Inferring Describing
Which is it?
Advance the slide to see the answer
Patients Systolic Blood Pressure1 75
2 85
3 85
4 95
5 95
6 97
7 97
8 97
9 102
10 102
11 102
12 102
13 110
14 115
15 115
The director of a health clinic has asked you to help her analyze data from the results of patient systolic blood pressure readings. Before you begin your analysis, you decide to find out which are the most common scores from just her data set of only 15 people.
Inferring Describing
Which is it?
Advance the slide to the next problem
Patients Systolic Blood Pressure1 75
2 85
3 85
4 95
5 95
6 97
7 97
8 97
9 102
10 102
11 102
12 102
13 110
14 115
15 115
We are analyzing data from just these 15 people for now. Therefore we are DESCRIBING. When we attempt to generalize from this 15 to a larger population, then we will INFER.
Explanation
Problem #4
You have been asked to examine 2010 Utah census data to determine the average number of person’s per household that speak a foreign language.
Advance the slide to see the options
Inferring Describing
Which is it?
Advance the slide to see the answer
You have been asked to examine 2010 Utah census data to determine the average number of person’s per household that speak a foreign language.
Inferring Describing
Which is it?
Advance the slide to see the explanation
You have been asked to examine 2010 Utah census data to determine the average number of person’s per household that speak a foreign language.
You have been asked to examine 2010 Utah censusdata to determine the average number of person’s per household that speak foreign language.
Inferring Describing
Which is it?
We are dealing with everyone (a population) in a census.
Explanation
Advance the slide to see the next problem
Problem #5
A software developer wants to determine if his software helps children achieve significant gains in their reading comprehension. You randomly select a sample of 40 fifth grade children in the Alpine District and test their reading comprehension before and after using the software. You wish to generalize the results to all fifth graders in the school district.
Advance the slide to see the options
Inferring Describing
Which is it?
Advance the slide to see the answer
A software developer wants to determine if his software helps children achieve significant gains in their reading comprehension. You randomly select a sample of 40 fifth grade children in the Alpine District and test their reading comprehension before and after using the software. You wish to generalize the results to all fifth graders in the school district.
Advance the slide to see the explanation
A software developer wants to determine if his software helps children achieve significant gains in their reading comprehension. You randomly select a sample of 40 fifth grade children in the Alpine District and test their reading comprehension before and after using the software. You wish to generalize the results to all fifth graders in the school district.
Inferring Describing
Which is it?
A software developer wants to determine if his software helps children achieve significant gains in their reading comprehension. You randomly select a sample of 40 fifth grade children in the Alpine District and test their reading comprehension before and after using the software. You wish to generalize the results to all fifth graders in the school district.
Inferring Describing
Which is it?We are inferring or generalizing from a sample of fifth graders’ to an entire school district of
fifth graders’ reading comprehension growth
(population).
Explanation
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