Question 1

The sample standard deviation is calculated by taking the square root of the population standard deviation.

Accepted Answer

A) True 
 B)False

Question 2

The ages of ten seniors are 71, 68, 75, 68, 62, 80, 73, 68, 67, 70. The 90th percentile is

Accepted Answer

A)  68.0. 
B)  75.5. 
C)  70.5. 
D)  77.5. 
E)  73.0. 
A)  68.0. 
B)  75.5. 
C)  70.5. 
D)  77.5. 
E)  73.0.

Question 3

Liz Chapa manages a portfolio of 250 common stocks. Her staff compiled the following performance statistics for two new stocks:   The coefficient of variation for Salas Products, Inc. is ___.

Accepted Answer

A)  300% 
B)  100% 
C)  33% 
D)  5% 
E)  23% 
A)  300% 
B)  100% 
C)  33% 
D)  5% 
E)  23%

Question 4

Statistical measures used to yield information about the centre or the middle parts of a group of numbers are called the measures of central tendency.

Accepted Answer

A) True 
 B)False

Question 5

___ are used to describe the data set.

Accepted Answer

A)  Quantiles 
B)  Quartiles 
C)  Percentiles 
D)  Qucentiles 
A)  Quantiles 
B)  Quartiles 
C)  Percentiles 
D)  Qucentiles

Question 6

Quantiles can be used with ___ data only.

Accepted Answer

A)  qualitative 
B)  quantitative 
C)  numerical 
D)  individual points of 
A)  qualitative 
B)  quantitative 
C)  numerical 
D)  individual points of

Question 7

Skewness and kurtosis of a data set are measures of the shape of the distribution.

Accepted Answer

A) True 
 B)False

Question 8

One of the main uses of a box and whisker plot is to identify outliers.

Accepted Answer

A) True 
 B)False

Question 9

Data values outside the fences in a distribution using a box and whisker plot are ___.

Accepted Answer

A)  inliers 
B)  outliers 
C)  boxliers 
D)  fenceliers 
A)  inliers 
B)  outliers 
C)  boxliers 
D)  fenceliers

Question 10

Consider the following data: 0, 2, 4, 6, 11, 12, 13. The first (Q1) and third (Q3) quartiles are

Accepted Answer

A)  0 and 6. 
B)  2 and 11. 
C)  2 and 12. 
D)  0 and 12. 
E)  6 and 12. 
A)  0 and 6. 
B)  2 and 11. 
C)  2 and 12. 
D)  0 and 12. 
E)  6 and 12.

Question 11

A statistics student made the following grades on five tests: 84, 78, 88, 78, and 82. What is the mode?

Accepted Answer

A)  78 
B)  80 
C)  88 
D)  84 
E)  82 
A)  78 
B)  80 
C)  88 
D)  84 
E)  82

Question 12

A statistics student made the following grades on five tests: 84, 78, 88, 78, and 72. What is the mean grade?

Accepted Answer

A)  78 
B)  80 
C)  72 
D)  84 
E)  88 
A)  78 
B)  80 
C)  72 
D)  84 
E)  88

Question 13

You do $\textbf{   not       }$ need to highlight the data in Excel to use it for your analysis.

Accepted Answer

A) True 
 B)False

Question 14

The following box and whisker plot was constructed for the age of accounts receivable:   The box and whisker plot reveals that the accounts receivable ages are ___.

Accepted Answer

A)  skewed to the left 
B)  skewed to the right 
C)  not skewed 
D)  normally distributed 
E)  symmetrical 
A)  skewed to the left 
B)  skewed to the right 
C)  not skewed 
D)  normally distributed 
E)  symmetrical

Question 15

A box and whisker plot is determined from the mean, the smallest and the largest values, and the lower and upper quartile.

Accepted Answer

A) True 
 B)False

Question 16

A commuter travels many kilometres to work each morning. She has timed this trip 5 times during the last month. The time (in minutes) required to make this trip was 34, 39, 41, 35, and 41. The modal time required for this trip was ___.

Accepted Answer

A)  39 
B)  41 
C)  37.5 
D)  38 
E)  35 
A)  39 
B)  41 
C)  37.5 
D)  38 
E)  35

Question 17

A nonzero value of the skewness indicates asymmetry of the distribution of the data.

Accepted Answer

A) True 
 B)False

Question 18

The sum of the squared deviations from the arithmetic mean, divided by the sample size minus one is called the sample variance.

Accepted Answer

A) True 
 B)False

Question 19

Box and whisker plots $\textbf{      cannot     }$be generated in Excel.

Accepted Answer

A) True 
 B)False

Question 20

The spread or dispersion of a set of data is called

Accepted Answer

A)  range 
B)  coefficient of variation 
C)  measures of variation 
D)  mean absolute deviation 
A)  range 
B)  coefficient of variation 
C)  measures of variation 
D)  mean absolute deviation

The sample standard deviation is calculated by taking the square root of the population standard deviation.

The ages of ten seniors are 71, 68, 75, 68, 62, 80, 73, 68, 67, 70. The 90^th percentile is

Liz Chapa manages a portfolio of 250 common stocks. Her staff compiled the following performance statistics for two new stocks: The coefficient of variation for Salas Products, Inc. is ___.

Statistical measures used to yield information about the centre or the middle parts of a group of numbers are called the measures of central tendency.

___ are used to describe the data set.

Quantiles can be used with ___ data only.

Skewness and kurtosis of a data set are measures of the shape of the distribution.

One of the main uses of a box and whisker plot is to identify outliers.

Data values outside the fences in a distribution using a box and whisker plot are ___.

Consider the following data: 0, 2, 4, 6, 11, 12, 13. The first (Q1) and third (Q3) quartiles are

A statistics student made the following grades on five tests: 84, 78, 88, 78, and 82. What is the mode?

A statistics student made the following grades on five tests: 84, 78, 88, 78, and 72. What is the mean grade?

You do $\textbf{ not }$ need to highlight the data in Excel to use it for your analysis.

The following box and whisker plot was constructed for the age of accounts receivable: The box and whisker plot reveals that the accounts receivable ages are ___.

A box and whisker plot is determined from the mean, the smallest and the largest values, and the lower and upper quartile.

A commuter travels many kilometres to work each morning. She has timed this trip 5 times during the last month. The time (in minutes) required to make this trip was 34, 39, 41, 35, and 41. The modal time required for this trip was ___.

A nonzero value of the skewness indicates asymmetry of the distribution of the data.

The sum of the squared deviations from the arithmetic mean, divided by the sample size minus one is called the sample variance.

Box and whisker plots $\textbf{ cannot }$ be generated in Excel.

The spread or dispersion of a set of data is called

Introduction to Statistics

Organizing and Visualizing Data

Gathering Data

Probability

Decision Analysis and Expected Value

Discrete Probability Distributions

Continuous Distributions

Sampling Distributions

Confidence Intervals

Hypothesis Testing for Single Populations

Hypothesis Testing for Two Populations

Analysis of Variance Anova

Linear Correlation and Simple Linear Regression Analysis

Categorical Versus Categorical: Tests

Filters

Exam 3: Descriptive Statistics

The sample standard deviation is calculated by taking the square root of the population standard deviation.

The ages of ten seniors are 71, 68, 75, 68, 62, 80, 73, 68, 67, 70. The 90th percentile is

Liz Chapa manages a portfolio of 250 common stocks. Her staff compiled the following performance statistics for two new stocks: The coefficient of variation for Salas Products, Inc. is ___.

Statistical measures used to yield information about the centre or the middle parts of a group of numbers are called the measures of central tendency.

___ are used to describe the data set.

Quantiles can be used with ___ data only.

Skewness and kurtosis of a data set are measures of the shape of the distribution.

One of the main uses of a box and whisker plot is to identify outliers.

Data values outside the fences in a distribution using a box and whisker plot are ___.

Consider the following data: 0, 2, 4, 6, 11, 12, 13. The first (Q1) and third (Q3) quartiles are

A statistics student made the following grades on five tests: 84, 78, 88, 78, and 82. What is the mode?

A statistics student made the following grades on five tests: 84, 78, 88, 78, and 72. What is the mean grade?

You do not \textbf{ not } not need to highlight the data in Excel to use it for your analysis.

The following box and whisker plot was constructed for the age of accounts receivable: The box and whisker plot reveals that the accounts receivable ages are ___.

A box and whisker plot is determined from the mean, the smallest and the largest values, and the lower and upper quartile.

A commuter travels many kilometres to work each morning. She has timed this trip 5 times during the last month. The time (in minutes) required to make this trip was 34, 39, 41, 35, and 41. The modal time required for this trip was ___.

A nonzero value of the skewness indicates asymmetry of the distribution of the data.

The sum of the squared deviations from the arithmetic mean, divided by the sample size minus one is called the sample variance.

Box and whisker plots cannot \textbf{ cannot } cannot be generated in Excel.

The spread or dispersion of a set of data is called

Introduction to Statistics

Organizing and Visualizing Data

Gathering Data

Probability

Decision Analysis and Expected Value

Discrete Probability Distributions

Continuous Distributions

Sampling Distributions

Confidence Intervals

Hypothesis Testing for Single Populations

Hypothesis Testing for Two Populations

Analysis of Variance Anova

Linear Correlation and Simple Linear Regression Analysis

Categorical Versus Categorical: Tests

Filters

The ages of ten seniors are 71, 68, 75, 68, 62, 80, 73, 68, 67, 70. The 90^th percentile is

You do $\textbf{ not }$ need to highlight the data in Excel to use it for your analysis.

Box and whisker plots $\textbf{ cannot }$ be generated in Excel.