Question 1

The following data represent monthly returns (in percent): -7.24 1.64 3.48 -2.49 9.30
The geometric mean return is the closest to ________.

Accepted Answer

A)  -0.43% 
B)  0.78% 
C)  0.94% 
D)  4.79% 
A)  -0.43% 
B)  0.78% 
C)  0.94% 
D)  4.79%

Question 2

Mean-variance analysis suggests that investments with lower average returns are also associated with higher risks.

Accepted Answer

A) True 
 B)False

Question 3

A bowler's scores for a sample of six games were 172 168 188 190 172 182 174.
The bowler's median score is _____.

Accepted Answer

A)  172 
B)  174 
C)  178 
D)  190 
A)  172 
B)  174 
C)  178 
D)  190

Question 4

John lives in Los Angeles and hates the traffic.He asked a sample of 6 of his coworkers who live all over Los Angles how many hours they spend commuting every year.These are their responses in hours per year.
20 240 260 300 310 570
a.Calculate and interpret the 30th,50th,and 70th percentiles.
b.Are there any outliers? Is the distribution symmetric? If not,comment on its skewness.

Accepted Answer

Arrange data in ascending order.Locate t

Question 5

Automobiles traveling on a road with a posted speed limit of 65 miles per hour are checked for speed by a state police radar system.The following is a frequency distribution of speeds.   The standard deviation of this distribution is the closest to ____.

Accepted Answer

A)  5.35 
B)  6.81 
C)  9.54 
D)  10.25 
A)  5.35 
B)  6.81 
C)  9.54 
D)  10.25

Question 6

Amounts spent by a sample of 50 customers at a retail store are summarized in the following relative frequency distribution.   The mean amount spent by customers is the closest to ______.

Accepted Answer

A)  $0.36 
B)  $18.00 
C)  $20.00 
D)  $25.00 
A)  $0.36 
B)  $18.00 
C)  $20.00 
D)  $25.00

Question 7

In quality control settings,businesses prefer a larger standard deviation,which is an indication of more consistency in the process.

Accepted Answer

A) True 
 B)False

Question 8

Amounts spent by a sample of 200 customers at a retail store are summarized in the following relative frequency distribution.   The mean amount spent by customers is the closest to _____.

Accepted Answer

A)  $17.50 
B)  $20.00 
C)  $22.50 
D)  $50.00 
A)  $17.50 
B)  $20.00 
C)  $22.50 
D)  $50.00

Question 9

The empirical rule can be used to estimate some proportions_________________.

Accepted Answer

A)  when data has any shape. 
B)  when it is skewed to the left. 
C)  when it is skewed to the right. 
D)  when it is approximately symmetric and bell-shaped. 
A)  when data has any shape. 
B)  when it is skewed to the left. 
C)  when it is skewed to the right. 
D)  when it is approximately symmetric and bell-shaped.

Question 10

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?

Accepted Answer

The arithmetic average return is calcula

Question 11

A portfolio's annual total returns (in percent)for a five-year period are: -7.14 1.62 2.50 -2.50 9.27.
The median and the standard deviation for this sample are the closest to ______________.

Accepted Answer

A)  0.75 and 5.46 
B)  1.62 and 5.46 
C)  1.62 and 6.11 
D)  2.50 and 6.11 
A)  0.75 and 5.46 
B)  1.62 and 5.46 
C)  1.62 and 6.11 
D)  2.50 and 6.11

Question 12

A bowler's scores for a sample of six games were 172 168 188 190 172 182 174.
The bowler's average score is _____.

Accepted Answer

A)  172 
B)  174 
C)  178 
D)  190 
A)  172 
B)  174 
C)  178 
D)  190

Question 13

There are five rows of students seated in a marketing class.The following table shows the number of students in each row and the average score of the most recent test for that row.   What is the average test score for this class?

Accepted Answer

A)  84.7 
B)  85.7 
C)  83.0 
D)  86.8 
A)  84.7 
B)  85.7 
C)  83.0 
D)  86.8

Question 14

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 ____.

Accepted Answer

A)  1.89 
B)  2.79 
C)  3.50 
D)  3.56 
A)  1.89 
B)  2.79 
C)  3.50 
D)  3.56

Question 15

A portfolio manager generates a 5% return in 2008,a 12% return in 2009,a negative 6% return in 2010,and a return of 2% (nonannualized)in the first quarter of 2011.The annualized return for the entire period is theclosest to _______.

Accepted Answer

A)  3.05% 
B)  3.25% 
C)  3.50% 
D)  3.77% 
A)  3.05% 
B)  3.25% 
C)  3.50% 
D)  3.77%

Question 16

The annual returns (in percent)for a sample of stocks in the technology industry over the past year are as follows: 4.2 -9.4 2.8 -16.0 -6.6.
The median return is the closest to _____.

Accepted Answer

A)  -6.6 
B)  -5 
C)  0 
D)  2.8 
A)  -6.6 
B)  -5 
C)  0 
D)  2.8

Question 17

Yearly returns (rounded to the nearest percent)for GLD a gold exchange traded fund and SLV a silver exchange traded fund are reported in the following table.   a.Calculate the covariance between GLD and SLV.
b.Calculate and interpret the correlation coefficient.

Accepted Answer

The sample covarianc

Question 18

The Boom company has recently decided to raise the salaries of all employees by 10%.Which of the following is(are)expected to be affected by this raise?

Accepted Answer

A)  Mean and mode only 
B)  Mean and median only 
C)  Mode and median only 
D)  Mean,median,and mode 
A)  Mean and mode only 
B)  Mean and median only 
C)  Mode and median only 
D)  Mean,median,and mode

Question 19

Which five values are graphed on a box plot?

Accepted Answer

A)  Min,Quintile 1,Mean,Quintile 3,Max 
B)  Min,Quartile 1,Mean,Quartile 3,Max 
C)  Min,Quintile 1,Median,Quintile 3,Max 
D)  Min,Quartile 1,Median,Quartile 3,Max 
A)  Min,Quintile 1,Mean,Quintile 3,Max 
B)  Min,Quartile 1,Mean,Quartile 3,Max 
C)  Min,Quintile 1,Median,Quintile 3,Max 
D)  Min,Quartile 1,Median,Quartile 3,Max

Question 20

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

Accepted Answer

A) True 
 B)False

The following data represent monthly returns (in percent): -7.24 1.64 3.48 -2.49 9.30 The geometric mean return is the closest to ________.

Mean-variance analysis suggests that investments with lower average returns are also associated with higher risks.

A bowler's scores for a sample of six games were 172 168 188 190 172 182 174. The bowler's median score is _____.

Automobiles traveling on a road with a posted speed limit of 65 miles per hour are checked for speed by a state police radar system.The following is a frequency distribution of speeds. The standard deviation of this distribution is the closest to ____.

Amounts spent by a sample of 50 customers at a retail store are summarized in the following relative frequency distribution. The mean amount spent by customers is the closest to ______.

In quality control settings,businesses prefer a larger standard deviation,which is an indication of more consistency in the process.

Amounts spent by a sample of 200 customers at a retail store are summarized in the following relative frequency distribution. The mean amount spent by customers is the closest to _____.

The empirical rule can be used to estimate some proportions_________________.

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?

A portfolio's annual total returns (in percent)for a five-year period are: -7.14 1.62 2.50 -2.50 9.27. The median and the standard deviation for this sample are the closest to ______________.

A bowler's scores for a sample of six games were 172 168 188 190 172 182 174. The bowler's average score is _____.

There are five rows of students seated in a marketing class.The following table shows the number of students in each row and the average score of the most recent test for that row. What is the average test score for this class?

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 ____.

A portfolio manager generates a 5% return in 2008,a 12% return in 2009,a negative 6% return in 2010,and a return of 2% (nonannualized)in the first quarter of 2011.The annualized return for the entire period is theclosest to _______.

The annual returns (in percent)for a sample of stocks in the technology industry over the past year are as follows: 4.2 -9.4 2.8 -16.0 -6.6. The median return is the closest to _____.

Yearly returns (rounded to the nearest percent)for GLD a gold exchange traded fund and SLV a silver exchange traded fund are reported in the following table. a.Calculate the covariance between GLD and SLV. b.Calculate and interpret the correlation coefficient.

The Boom company has recently decided to raise the salaries of all employees by 10%.Which of the following is(are)expected to be affected by this raise?

Which five values are graphed on a box plot?

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

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 following data represent monthly returns (in percent): -7.24 1.64 3.48 -2.49 9.30 The geometric mean return is the closest to ________.

Mean-variance analysis suggests that investments with lower average returns are also associated with higher risks.

A bowler's scores for a sample of six games were 172 168 188 190 172 182 174. The bowler's median score is _____.

Automobiles traveling on a road with a posted speed limit of 65 miles per hour are checked for speed by a state police radar system.The following is a frequency distribution of speeds. The standard deviation of this distribution is the closest to ____.

Amounts spent by a sample of 50 customers at a retail store are summarized in the following relative frequency distribution. The mean amount spent by customers is the closest to ______.

In quality control settings,businesses prefer a larger standard deviation,which is an indication of more consistency in the process.

Amounts spent by a sample of 200 customers at a retail store are summarized in the following relative frequency distribution. The mean amount spent by customers is the closest to _____.

The empirical rule can be used to estimate some proportions_________________.

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?

A portfolio's annual total returns (in percent)for a five-year period are: -7.14 1.62 2.50 -2.50 9.27. The median and the standard deviation for this sample are the closest to ______________.

A bowler's scores for a sample of six games were 172 168 188 190 172 182 174. The bowler's average score is _____.

There are five rows of students seated in a marketing class.The following table shows the number of students in each row and the average score of the most recent test for that row. What is the average test score for this class?

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 ____.

A portfolio manager generates a 5% return in 2008,a 12% return in 2009,a negative 6% return in 2010,and a return of 2% (nonannualized)in the first quarter of 2011.The annualized return for the entire period is theclosest to _______.

The annual returns (in percent)for a sample of stocks in the technology industry over the past year are as follows: 4.2 -9.4 2.8 -16.0 -6.6. The median return is the closest to _____.

Yearly returns (rounded to the nearest percent)for GLD a gold exchange traded fund and SLV a silver exchange traded fund are reported in the following table. a.Calculate the covariance between GLD and SLV. b.Calculate and interpret the correlation coefficient.

The Boom company has recently decided to raise the salaries of all employees by 10%.Which of the following is(are)expected to be affected by this raise?

Which five values are graphed on a box plot?

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

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