Exam 4: Describing Data: Displaying and Exploring Data

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. For the distribution of number of sales per hour, what is the interquartile range?

(Short Answer)

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Question 41

A __________ shows the interquartile range.

(Short Answer)

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Question 42

The following graph is _______________.

(Multiple Choice)

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Question 43

The research director of a large oil company studied the buying habits of consumers with respect to the amount of gasoline purchased at full-service pumps. The sample mean amount is 11.5 gallons and the median amount is 11.95 gallons. The standard deviation of the sample is 4.5 gallons. What is Pearson's coefficient of skewness here?

(Short Answer)

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Question 44

What statistics are needed to draw a box plot?

(Multiple Choice)

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Question 45

Percentiles divide a distribution into _____________.

(Multiple Choice)

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Question 46

A dot plot is useful for quickly graphing frequencies in a small data set.

(True/False)

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Question 47

For the following data, how many observations are in the data?

(Short Answer)

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Question 48

The interquartile range is the distance between ___________.

(Short Answer)

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Question 49

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 20 hours. Draw a dot plot for the data.

(Essay)

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Question 50

In a symmetric distribution, is the 99^th percentile is located in the ________ tail.

(Short Answer)

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Question 51

Quartiles divide a distribution into four equal parts.

(True/False)

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Question 52

What does the interquartile range describe?

(Multiple Choice)

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Question 53

A __________ clearly shows outliers.

(Short Answer)

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Question 54

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 55

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

(True/False)

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Question 56

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. For the distribution of number of sales per hour, 50% are equal or greater than ___________.

(Short Answer)

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Question 57

A scatter diagram of sales versus production may be constructed by plotting the minimum, first quartile, median, third quartile, and the maximum values of each variable.

(True/False)

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Question 58

A dot plot can be used to show _________________.

(Multiple Choice)

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Question 59

A ___________ is the best way to display the relationship between two variables measured on an interval or ratio level.

(Short Answer)

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Question 60

Showing 41 - 60 of 92

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. For the distribution of number of sales per hour, what is the interquartile range?

A __________ shows the interquartile range.

The following graph is _______________.

What statistics are needed to draw a box plot?

Percentiles divide a distribution into _____________.

A dot plot is useful for quickly graphing frequencies in a small data set.

For the following data, how many observations are in the data?

The interquartile range is the distance between ___________.

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 20 hours. Draw a dot plot for the data.

In a symmetric distribution, is the 99^th percentile is located in the ________ tail.

Quartiles divide a distribution into four equal parts.

What does the interquartile range describe?

A __________ clearly shows outliers.

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 _______________.

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

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. For the distribution of number of sales per hour, 50% are equal or greater than ___________.

A scatter diagram of sales versus production may be constructed by plotting the minimum, first quartile, median, third quartile, and the maximum values of each variable.

A dot plot can be used to show _________________.

A ___________ is the best way to display the relationship between two variables measured on an interval or ratio level.

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: Goodness-Of-Fit Tests

Filters

Exam 4: Describing Data: Displaying and Exploring Data

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. For the distribution of number of sales per hour, what is the interquartile range?

A __________ shows the interquartile range.

The following graph is _______________.

What statistics are needed to draw a box plot?

Percentiles divide a distribution into _____________.

A dot plot is useful for quickly graphing frequencies in a small data set.

For the following data, how many observations are in the data?

The interquartile range is the distance between ___________.

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 20 hours. Draw a dot plot for the data.

In a symmetric distribution, is the 99th percentile is located in the ________ tail.

Quartiles divide a distribution into four equal parts.

What does the interquartile range describe?

A __________ clearly shows outliers.

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 _______________.

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

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. For the distribution of number of sales per hour, 50% are equal or greater than ___________.

A scatter diagram of sales versus production may be constructed by plotting the minimum, first quartile, median, third quartile, and the maximum values of each variable.

A dot plot can be used to show _________________.

A ___________ is the best way to display the relationship between two variables measured on an interval or ratio level.

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: Goodness-Of-Fit Tests

Filters

In a symmetric distribution, is the 99^th percentile is located in the ________ tail.