Question 1

Ages of Retirees
A sociologist recently conducted a survey of retirees over 65 years of age whose net worth is too high to qualify for Medicaid and who have no private health insurance.The ages of 20 uninsured retirees were as follows: 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 78, 79, 80, 81, 86, 87, 91, 92, 94, and 97.
-{Ages of Retirees Narrative} What does the value of the third quartile tell you?

Accepted Answer

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A sociologist recently conducted a...

Question 2

Ages of Retirees
A sociologist recently conducted a survey of retirees over 65 years of age whose net worth is too high to qualify for Medicaid and who have no private health insurance.The ages of 20 uninsured retirees were as follows: 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 78, 79, 80, 81, 86, 87, 91, 92, 94, and 97.
-{Ages of Retirees Narrative} Describe the shape of the distribution of ages by comparing the quartiles.

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A sociologist recently conducted a...

Question 3

Yearly Donations
The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2.
-{Yearly Donations Narrative} Compute and interpret the 90th percentile.

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The following data represent the yearly...

Question 4

Test Scores
Suppose that an analysis of a set of test scores reveals that: QS1U1B11S1U1B0 = 45, QS1U1B12S1U1B0 = 85, QS1U1B13S1U1B0 = 105.
-{Test Scores Narrative} What can you say about the relative position of each of the observations 34, 84, and 104, within this data set?

Accepted Answer

The answer of Test Scores
Suppose that an analysis of a...

Question 5

Ages of Retirees
A sociologist recently conducted a survey of retirees over 65 years of age whose net worth is too high to qualify for Medicaid and who have no private health insurance.The ages of 20 uninsured retirees were as follows: 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 78, 79, 80, 81, 86, 87, 91, 92, 94, and 97.
-{Ages of Retirees Narrative} Calculate the first quartile of the ages of the uninsured retirees.

Accepted Answer

The answer of Ages of Retirees
A sociologist recently conducted a...

Question 6

Yearly Donations
The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2.
-{Yearly Donations Narrative} Compute median.

Accepted Answer

The answer of Yearly Donations
The following data represent the yearly...

Question 7

Ages of Retirees
A sociologist recently conducted a survey of retirees over 65 years of age whose net worth is too high to qualify for Medicaid and who have no private health insurance.The ages of 20 uninsured retirees were as follows: 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 78, 79, 80, 81, 86, 87, 91, 92, 94, and 97.
-{Ages of Retirees Narrative} What does the value of the first quartile tell you?

Accepted Answer

The answer of Ages of Retirees
A sociologist recently conducted a...

Question 8

Yearly Donations
The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2.
-{Yearly Donations Narrative} Compute the lower quartile for the donations.

Accepted Answer

The answer of Yearly Donations
The following data represent the yearly...

Question 9

Test Scores
Suppose that an analysis of a set of test scores reveals that: QS1U1B11S1U1B0 = 45, QS1U1B12S1U1B0 = 85, QS1U1B13S1U1B0 = 105.
-{Test Scores Narrative} What do these statistics tell you about the shape of the distribution of test scores?

Accepted Answer

The answer of Test Scores
Suppose that an analysis of a...

Question 10

Yearly Donations
The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2.
-{Yearly Donations Narrative} Compute the upper quartile.

Accepted Answer

The answer of Yearly Donations
The following data represent the yearly...

Question 11

Yearly Donations
The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2.
-{Yearly Donations Narrative}
a.
Describe the shape of distribution of donations based on the values of the quartiles.
b.
Give a possible reason for the shape of this data set, in terms of donations.

Accepted Answer

The answer of Yearly Donations
The following data represent the yearly...

Question 12

Ages of Retirees
A sociologist recently conducted a survey of retirees over 65 years of age whose net worth is too high to qualify for Medicaid and who have no private health insurance.The ages of 20 uninsured retirees were as follows: 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 78, 79, 80, 81, 86, 87, 91, 92, 94, and 97.
-{Ages of Retirees Narrative} Calculate the third quartile of the ages of the uninsured retirees.

Accepted Answer

The answer of Ages of Retirees
A sociologist recently conducted a...

Question 13

Ages of Retirees
A sociologist recently conducted a survey of retirees over 65 years of age whose net worth is too high to qualify for Medicaid and who have no private health insurance.The ages of 20 uninsured retirees were as follows: 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 78, 79, 80, 81, 86, 87, 91, 92, 94, and 97.
-{Ages of Retirees Narrative} Identify the interquartile range of the ages of the uninsured retirees.What does this value tell you about the data?

Accepted Answer

The answer of Ages of Retirees
A sociologist recently conducted a...

Question 14

Test Scores
Suppose that an analysis of a set of test scores reveals that: QS1U1B11S1U1B0 = 45, QS1U1B12S1U1B0 = 85, QS1U1B13S1U1B0 = 105.
-{Test Scores Narrative} Calculate the interquartile range.What does this tell you about the data?

Accepted Answer

The answer of Test Scores
Suppose that an analysis of a...

Quiz 4: Numerical Descriptive Techniques

Yearly Donations The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2. -{Yearly Donations Narrative} Compute and interpret the 90th percentile.

Test Scores Suppose that an analysis of a set of test scores reveals that: Q₁ = 45, Q₂ = 85, Q₃ = 105. -{Test Scores Narrative} What can you say about the relative position of each of the observations 34, 84, and 104, within this data set?

Yearly Donations The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2. -{Yearly Donations Narrative} Compute median.

Yearly Donations The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2. -{Yearly Donations Narrative} Compute the lower quartile for the donations.

Test Scores Suppose that an analysis of a set of test scores reveals that: Q₁ = 45, Q₂ = 85, Q₃ = 105. -{Test Scores Narrative} What do these statistics tell you about the shape of the distribution of test scores?

Yearly Donations The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2. -{Yearly Donations Narrative} Compute the upper quartile.

Test Scores Suppose that an analysis of a set of test scores reveals that: Q₁ = 45, Q₂ = 85, Q₃ = 105. -{Test Scores Narrative} Calculate the interquartile range.What does this tell you about the data?

Quiz 4: Numerical Descriptive Techniques

Yearly Donations The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2. -{Yearly Donations Narrative} Compute and interpret the 90th percentile.

Test Scores Suppose that an analysis of a set of test scores reveals that: Q1 = 45, Q2 = 85, Q3 = 105. -{Test Scores Narrative} What can you say about the relative position of each of the observations 34, 84, and 104, within this data set?

Yearly Donations The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2. -{Yearly Donations Narrative} Compute median.

Yearly Donations The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2. -{Yearly Donations Narrative} Compute the lower quartile for the donations.

Test Scores Suppose that an analysis of a set of test scores reveals that: Q1 = 45, Q2 = 85, Q3 = 105. -{Test Scores Narrative} What do these statistics tell you about the shape of the distribution of test scores?

Yearly Donations The following data represent the yearly donations (in thousands of dollars) of a sample of 13 benefactors: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2. -{Yearly Donations Narrative} Compute the upper quartile.

Test Scores Suppose that an analysis of a set of test scores reveals that: Q1 = 45, Q2 = 85, Q3 = 105. -{Test Scores Narrative} Calculate the interquartile range.What does this tell you about the data?

Test Scores Suppose that an analysis of a set of test scores reveals that: Q₁ = 45, Q₂ = 85, Q₃ = 105. -{Test Scores Narrative} What can you say about the relative position of each of the observations 34, 84, and 104, within this data set?

Test Scores Suppose that an analysis of a set of test scores reveals that: Q₁ = 45, Q₂ = 85, Q₃ = 105. -{Test Scores Narrative} What do these statistics tell you about the shape of the distribution of test scores?

Test Scores Suppose that an analysis of a set of test scores reveals that: Q₁ = 45, Q₂ = 85, Q₃ = 105. -{Test Scores Narrative} Calculate the interquartile range.What does this tell you about the data?