Exam 3: Numerical Descriptive Measures

The sample data below shows the number of hours spent by 5 students over the weekend to prepare for Monday's Business Statistics exam. The 75^th percentile of the data is closest to:

(Multiple Choice)

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Question 61

The coefficient of variation is a unit free measure of dispersion.

(True/False)

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Question 62

The arithmetic mean is the middle value of a data set.

(True/False)

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Question 63

As of September 30,2011,the earnings per share,EPS,of five firms in the biotechnology industry are as follows: The sample mean and the sample standard deviation are closest to:

(Multiple Choice)

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Question 64

The following table shows the annual returns (in percent)Chevron and Caterpillar for 2007-2010. a.Which fund had the higher arithmetic average return? B)Which fund was riskier over this time period? C)Given a risk-free rate of 1%,which fund has the higher Sharpe ratio? What does this imply?

(Essay)

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Question 65

The following frequency distribution represents the number of hours studied per week by a sample of 50 students. The standard deviation of the number of hours studied is:

(Multiple Choice)

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Question 66

What does the covariance measure?

(Multiple Choice)

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Question 67

The following data is a list of the magnitudes of six of Alaska's largest recorded earthquakes. 9.2,7.9,8.7,8.6,7.9,8.1 Calculate the mean,median and mode of the magnitude of Alaska's Earthquakes.

(Short Answer)

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Question 68

A portfolio's annual total returns (in percent)for a 5-year period are: The median and the standard deviation for this sample are closest to:

(Multiple Choice)

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Question 69

The following frequency distribution represents the number of hours studied per week by a sample of 50 students. The mean number of hours studied is:

(Multiple Choice)

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Question 70

The following is data a veterinarian collected from some of her clients.It is a rough estimate of a dog's weight and how long the dog lived. a.Calculate the covariance between a dog's weight and its life span. B)Calculate and interpret the correlation coefficient.

(Essay)

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Question 71

For k > 1,Chebyshev's theorem is useful in estimating the proportion of observations that fall within:

(Multiple Choice)

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Question 72

The MAD is a less effective measure of variation when compared with the average deviation from the mean.

(True/False)

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Question 73

How do you define the range?

(Multiple Choice)

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Question 74

Consider a population with data values of . The population variance is closest to:

(Multiple Choice)

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Question 75

The geometric mean is a multiplicative average of a data set.

(True/False)

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Question 76

In an accounting class of 200 students,the mean and standard deviation of scores was 70 and 5,respectively.Use the empirical rule to determine the number of students who scored less than 65 or more than 75.

(Multiple Choice)

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Question 77

An investor bought common stock of Blackstone Company on several occasions at the following prices. The average price per share at which the investor bought these shares of common stock was closest to:

(Multiple Choice)

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Question 78

The following data represent monthly returns (in percent): The geometric mean return is closest to:

(Multiple Choice)

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Question 79

The Sharpe ratio measures

(Multiple Choice)

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Question 80

Showing 61 - 80 of 123

The sample data below shows the number of hours spent by 5 students over the weekend to prepare for Monday's Business Statistics exam. The 75^th percentile of the data is closest to:

The coefficient of variation is a unit free measure of dispersion.

The arithmetic mean is the middle value of a data set.

As of September 30,2011,the earnings per share,EPS,of five firms in the biotechnology industry are as follows: The sample mean and the sample standard deviation are closest to:

The following table shows the annual returns (in percent)Chevron and Caterpillar for 2007-2010. a.Which fund had the higher arithmetic average return? B)Which fund was riskier over this time period? C)Given a risk-free rate of 1%,which fund has the higher Sharpe ratio? What does this imply?

The following frequency distribution represents the number of hours studied per week by a sample of 50 students. The standard deviation of the number of hours studied is:

What does the covariance measure?

The following data is a list of the magnitudes of six of Alaska's largest recorded earthquakes. 9.2,7.9,8.7,8.6,7.9,8.1 Calculate the mean,median and mode of the magnitude of Alaska's Earthquakes.

A portfolio's annual total returns (in percent)for a 5-year period are: The median and the standard deviation for this sample are closest to:

The following frequency distribution represents the number of hours studied per week by a sample of 50 students. The mean number of hours studied is:

The following is data a veterinarian collected from some of her clients.It is a rough estimate of a dog's weight and how long the dog lived. a.Calculate the covariance between a dog's weight and its life span. B)Calculate and interpret the correlation coefficient.

For k > 1,Chebyshev's theorem is useful in estimating the proportion of observations that fall within:

The MAD is a less effective measure of variation when compared with the average deviation from the mean.

How do you define the range?

Consider a population with data values of . The population variance is closest to:

The geometric mean is a multiplicative average of a data set.

In an accounting class of 200 students,the mean and standard deviation of scores was 70 and 5,respectively.Use the empirical rule to determine the number of students who scored less than 65 or more than 75.

An investor bought common stock of Blackstone Company on several occasions at the following prices. The average price per share at which the investor bought these shares of common stock was closest to:

The following data represent monthly returns (in percent): The geometric mean return is closest to:

The Sharpe ratio measures

Statistics and Data

Tabular and Graphical Methods

Basic Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Testing

Statistical Inference Concerning Two Populations

Statistical Inference Concerning Variance

Chi-Square Tests

Analysis of Variance

Regression Analysis

Inference With Regression Models

Regression Models for Nonlinear Relationships

Regression Models With Dummy Variables

Time Series and Forecasting

Returns, Index Numbers and Inflation

Nonparametric Tests

Filters

Exam 3: Numerical Descriptive Measures

The sample data below shows the number of hours spent by 5 students over the weekend to prepare for Monday's Business Statistics exam. The 75th percentile of the data is closest to:

The coefficient of variation is a unit free measure of dispersion.

The arithmetic mean is the middle value of a data set.

As of September 30,2011,the earnings per share,EPS,of five firms in the biotechnology industry are as follows: The sample mean and the sample standard deviation are closest to:

The following table shows the annual returns (in percent)Chevron and Caterpillar for 2007-2010. a.Which fund had the higher arithmetic average return? B)Which fund was riskier over this time period? C)Given a risk-free rate of 1%,which fund has the higher Sharpe ratio? What does this imply?

The following frequency distribution represents the number of hours studied per week by a sample of 50 students. The standard deviation of the number of hours studied is:

What does the covariance measure?

The following data is a list of the magnitudes of six of Alaska's largest recorded earthquakes. 9.2,7.9,8.7,8.6,7.9,8.1 Calculate the mean,median and mode of the magnitude of Alaska's Earthquakes.

A portfolio's annual total returns (in percent)for a 5-year period are: The median and the standard deviation for this sample are closest to:

The following frequency distribution represents the number of hours studied per week by a sample of 50 students. The mean number of hours studied is:

The following is data a veterinarian collected from some of her clients.It is a rough estimate of a dog's weight and how long the dog lived. a.Calculate the covariance between a dog's weight and its life span. B)Calculate and interpret the correlation coefficient.

For k > 1,Chebyshev's theorem is useful in estimating the proportion of observations that fall within:

The MAD is a less effective measure of variation when compared with the average deviation from the mean.

How do you define the range?

Consider a population with data values of . The population variance is closest to:

The geometric mean is a multiplicative average of a data set.

In an accounting class of 200 students,the mean and standard deviation of scores was 70 and 5,respectively.Use the empirical rule to determine the number of students who scored less than 65 or more than 75.

An investor bought common stock of Blackstone Company on several occasions at the following prices. The average price per share at which the investor bought these shares of common stock was closest to:

The following data represent monthly returns (in percent): The geometric mean return is closest to:

The Sharpe ratio measures

Statistics and Data

Tabular and Graphical Methods

Basic Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Testing

Statistical Inference Concerning Two Populations

Statistical Inference Concerning Variance

Chi-Square Tests

Analysis of Variance

Regression Analysis

Inference With Regression Models

Regression Models for Nonlinear Relationships

Regression Models With Dummy Variables

Time Series and Forecasting

Returns, Index Numbers and Inflation

Nonparametric Tests

Filters

The sample data below shows the number of hours spent by 5 students over the weekend to prepare for Monday's Business Statistics exam. The 75^th percentile of the data is closest to: