Exam 4: Describing Data: Displaying and Exploring Data

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The following stem-and-leaf display reports the number of boats shipped per week by Ottertail Boats, Inc. 11| 1 5 9 12| 0 1 2 2 6 9 13| 0 1 2 3 4 5 5 7 8 8 9 14| 2 6 8 15| 0 1 2 4 5 7 8 9 16| 1 5 7 9 What is the median value?

(Essay)

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Question 41

Pearson's coefficient of skewness is a measure of a distribution's symmetry.

(True/False)

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Question 42

Quartiles divide a distribution into ___________.

(Multiple Choice)

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Question 43

A __________ shows the interquartile range.

(Short Answer)

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Question 44

What chart or graph uses several rows of data to show a frequency distribution?

(Short Answer)

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Question 45

A stem-and-leaf display includes the following row: 5 | 10 11 31 52 79 98. Assume that the data is rounded to the nearest whole number.

(Multiple Choice)

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Question 46

A dot plot is useful for showing the range of the data.

(True/False)

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Question 47

Quartiles divide a frequency distribution into _______ equal parts.

(Short Answer)

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Question 48

A sample of the homes currently offered for sale revealed that the mean asking price is $75,900, the median is $70,100, and the modal price is $67,200. The standard deviation of the distribution is $5,900. What is Pearson's coefficient of skewness in this sample?

(Essay)

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Question 49

Pearson's coefficient of skewness (Sk) ranges from -3.0 to +3.0. It is computed by subtracting the median from the mean, multiplying the result by 3, and dividing by the _______________.

(Short Answer)

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Question 50

If a student places in the 99^th percentile on an exam, she performed better than 99% of all students who completed the exam. Her performance is similar to a statement based on a __________.

(Multiple Choice)

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Question 51

The following stem-and-leaf display reports the number of boats shipped per week by Ottertail Boats, Inc. 11| 1 5 9 12| 0 1 2 2 6 9 13| 0 1 2 3 4 5 5 7 8 8 9 14| 2 6 8 15| 0 1 2 4 5 7 8 9 16| 1 5 7 9 How many observations are in the third class?

(Short Answer)

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Question 52

The range of the coefficient of skewness is ____________.

(Multiple Choice)

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Question 53

A dot plot is best applied when _____________________.

(Multiple Choice)

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Question 54

For the following data, what is the interquartile range?

(Essay)

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Question 55

What is the value of the Pearson coefficient of skewness for a distribution with a mean of 17, a median of 12, and a standard deviation of 6?

(Multiple Choice)

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Question 56

The following is an example of a ___________________________.

(Short Answer)

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Question 57

The 50^th percentile of a distribution is the same as the distribution mean.

(True/False)

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Question 58

If a distribution is negatively skewed, the distribution is not symmetrical and the long tail is to the left.

(True/False)

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Question 59

What is the difference between a scatter diagram and a contingency table?

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Question 60

Showing 41 - 60 of 113

The following stem-and-leaf display reports the number of boats shipped per week by Ottertail Boats, Inc. 11| 1 5 9 12| 0 1 2 2 6 9 13| 0 1 2 3 4 5 5 7 8 8 9 14| 2 6 8 15| 0 1 2 4 5 7 8 9 16| 1 5 7 9 What is the median value?

Pearson's coefficient of skewness is a measure of a distribution's symmetry.

Quartiles divide a distribution into ___________.

A __________ shows the interquartile range.

What chart or graph uses several rows of data to show a frequency distribution?

A stem-and-leaf display includes the following row: 5 | 10 11 31 52 79 98. Assume that the data is rounded to the nearest whole number.

A dot plot is useful for showing the range of the data.

Quartiles divide a frequency distribution into _______ equal parts.

A sample of the homes currently offered for sale revealed that the mean asking price is $75,900, the median is $70,100, and the modal price is $67,200. The standard deviation of the distribution is $5,900. What is Pearson's coefficient of skewness in this sample?

Pearson's coefficient of skewness (Sk) ranges from -3.0 to +3.0. It is computed by subtracting the median from the mean, multiplying the result by 3, and dividing by the _______________.

If a student places in the 99^th percentile on an exam, she performed better than 99% of all students who completed the exam. Her performance is similar to a statement based on a __________.

The following stem-and-leaf display reports the number of boats shipped per week by Ottertail Boats, Inc. 11| 1 5 9 12| 0 1 2 2 6 9 13| 0 1 2 3 4 5 5 7 8 8 9 14| 2 6 8 15| 0 1 2 4 5 7 8 9 16| 1 5 7 9 How many observations are in the third class?

The range of the coefficient of skewness is ____________.

A dot plot is best applied when _____________________.

For the following data, what is the interquartile range?

What is the value of the Pearson coefficient of skewness for a distribution with a mean of 17, a median of 12, and a standard deviation of 6?

The following is an example of a ___________________________.

The 50^th percentile of a distribution is the same as the distribution mean.

If a distribution is negatively skewed, the distribution is not symmetrical and the long tail is to the left.

What is the difference between a scatter diagram and a contingency table?

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Nonparametric Methods: Analysis of Ordinal Data

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

Exam 4: Describing Data: Displaying and Exploring Data

The following stem-and-leaf display reports the number of boats shipped per week by Ottertail Boats, Inc. 11| 1 5 9 12| 0 1 2 2 6 9 13| 0 1 2 3 4 5 5 7 8 8 9 14| 2 6 8 15| 0 1 2 4 5 7 8 9 16| 1 5 7 9 What is the median value?

Pearson's coefficient of skewness is a measure of a distribution's symmetry.

Quartiles divide a distribution into ___________.

A __________ shows the interquartile range.

What chart or graph uses several rows of data to show a frequency distribution?

A stem-and-leaf display includes the following row: 5 | 10 11 31 52 79 98. Assume that the data is rounded to the nearest whole number.

A dot plot is useful for showing the range of the data.

Quartiles divide a frequency distribution into _______ equal parts.

A sample of the homes currently offered for sale revealed that the mean asking price is $75,900, the median is $70,100, and the modal price is $67,200. The standard deviation of the distribution is $5,900. What is Pearson's coefficient of skewness in this sample?

Pearson's coefficient of skewness (Sk) ranges from -3.0 to +3.0. It is computed by subtracting the median from the mean, multiplying the result by 3, and dividing by the _______________.

If a student places in the 99th percentile on an exam, she performed better than 99% of all students who completed the exam. Her performance is similar to a statement based on a __________.

The following stem-and-leaf display reports the number of boats shipped per week by Ottertail Boats, Inc. 11| 1 5 9 12| 0 1 2 2 6 9 13| 0 1 2 3 4 5 5 7 8 8 9 14| 2 6 8 15| 0 1 2 4 5 7 8 9 16| 1 5 7 9 How many observations are in the third class?

The range of the coefficient of skewness is ____________.

A dot plot is best applied when _____________________.

For the following data, what is the interquartile range?

What is the value of the Pearson coefficient of skewness for a distribution with a mean of 17, a median of 12, and a standard deviation of 6?

The following is an example of a ___________________________.

The 50th percentile of a distribution is the same as the distribution mean.

If a distribution is negatively skewed, the distribution is not symmetrical and the long tail is to the left.

What is the difference between a scatter diagram and a contingency table?

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Nonparametric Methods: Analysis of Ordinal Data

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

If a student places in the 99^th percentile on an exam, she performed better than 99% of all students who completed the exam. Her performance is similar to a statement based on a __________.

The 50^th percentile of a distribution is the same as the distribution mean.