Question 1

The letter grades (A, B, C, D, F) of business analysis students are recorded by a professor. This variable's classification

Accepted Answer

A) is quantitative data. 
B) cannot be determined. 
C) is categorical data. 
D) is time series data. 
A) is quantitative data. 
B) cannot be determined. 
C) is categorical data. 
D) is time series data.

Question 2

Use technology to compute the standard deviation for the following sample data. 32, 41, 36, 24, 29, 30, 40, 22, 25, 37

Accepted Answer

A) 5.96 
B) 6.41 
C) 5.42 
D) 6.75 
A) 5.96 
B) 6.41 
C) 5.42 
D) 6.75

Question 3

Which graph represents a negative linear relationship between x and y? ​   ​
​

Accepted Answer

A) A 
B) B 
C) C 
D) None of the graphs display a negative linear relationship. 
A) A 
B) B 
C) C 
D) None of the graphs display a negative linear relationship.

Question 4

In a survey of patients in a local hospital, 62.42% of the respondents indicated that the health care providers needed to spend more time with each patient. Who makes up the sample? ​

Accepted Answer

A) All patients in a local hospital 
B) All survey respondents 
C) Hospital patients 
D) Cannot be determined from the information given 
A) All patients in a local hospital 
B) All survey respondents 
C) Hospital patients 
D) Cannot be determined from the information given

Question 5

A __________ determines how far a particular value is from the mean relative to the data set's standard deviation.

Accepted Answer

A) coefficient of variation 
B) z-score 
C) variance 
D) percentile 
A) coefficient of variation 
B) z-score 
C) variance 
D) percentile

Question 6

Compute the relative frequencies for the data given in the table below:

$\begin{array} { c | c } 
\text { Grades } & \begin{array} { c } 
\text { Number of } \
\text { students }
\end{array} \
\hline \text { A } & 16 \
\text { B } & 28 \
\text { C } & 33 \
\text { D } & 13 \
\hline \text { Total } & 90
\end{array}$

Accepted Answer

A) $0.31,0.14,0.37,0.18$ 
B) $0.37,0.14,0.31,0.18$ 
C) $0.16,0.28,0.33,0.13$ 
D) $0.18,0.31,0.37,0.14$ 
A) $0.31,0.14,0.37,0.18$ 
B) $0.37,0.14,0.31,0.18$ 
C) $0.16,0.28,0.33,0.13$ 
D) $0.18,0.31,0.37,0.14$

Question 7

The correlation coefficient will always take values

Accepted Answer

A) greater than 0. 
B) between -1 and 0. 
C) between -1 and +1. 
D) less than -1. 
A) greater than 0. 
B) between -1 and 0. 
C) between -1 and +1. 
D) less than -1.

Question 8

_______________ acts as a representative of the population.

Accepted Answer

A) The variable 
B) The variance 
C) A sample 
D) A random variable 
A) The variable 
B) The variance 
C) A sample 
D) A random variable

Question 9

What is the mode of the data set given below? ​
35, 47, 65, 47, 22
​

Accepted Answer

A) 47.5 
B) 47 
C) 65 
D) 22 
A) 47.5 
B) 47 
C) 65 
D) 22

Question 10

A quantity of interest that can take on different values is known as a(n)

Accepted Answer

A) variable. 
B) parameter. 
C) sample. 
D) observation. 
A) variable. 
B) parameter. 
C) sample. 
D) observation.

Question 11

Scores on Ms. Bond's test have a mean of 70 and a standard deviation of 11. David has a score of 52 on Ms. Bond's test. Scores on Ms. Nash's test have a mean of 64 and a standard deviation of 6. Steven has a score of 52 on Ms. Nash's test. Which student has the higher standardized score?

Accepted Answer

A) David's standardized score is -1.64 and Steven's standardized score is -2.00. Therefore, David has the higher standardized score. 
B) David's standardized score is -1.64 and Steven's standardized score is -2.00. Therefore, Steven has the higher standardized score. 
C) David's standardized score is 1.64 and Steven's standardized score is 2.00. Therefore, Steven has the higher standardized score. 
D) Cannot be determined with the information provided. 
A) David's standardized score is -1.64 and Steven's standardized score is -2.00. Therefore, David has the higher standardized score. 
B) David's standardized score is -1.64 and Steven's standardized score is -2.00. Therefore, Steven has the higher standardized score. 
C) David's standardized score is 1.64 and Steven's standardized score is 2.00. Therefore, Steven has the higher standardized score. 
D) Cannot be determined with the information provided.

Question 12

Which Excel command will return all modes when more than one mode exists? ​

Accepted Answer

A) MODE.MULT 
B) MODE.SNGL 
C) MODE 
D) MODES 
A) MODE.MULT 
B) MODE.SNGL 
C) MODE 
D) MODES

Question 13

Scores on Ms. Nash's test have a mean of 64 and a standard deviation of 9. Steve has a score of 52. Convert Steve's score to a z-score. (Round to two decimal places if necessary.)

Accepted Answer

A) 1.33 
B) 58.2 
C) -2 
D) -1.33 
A) 1.33 
B) 58.2 
C) -2 
D) -1.33

Question 14

A manager of a fast food restaurant wants the drive-thru employee to ask every fifth customer if he or she is satisfied with the service. Who makes up the population?

Accepted Answer

A) All customers who use the drive-thru window of this fast food restaurant 
B) All survey respondents 
C) All customers of this restaurant 
D) The proportion of customers who say they are satisfied with their service 
A) All customers who use the drive-thru window of this fast food restaurant 
B) All survey respondents 
C) All customers of this restaurant 
D) The proportion of customers who say they are satisfied with their service

Question 15

Any data value with a z-score less than -3 or greater than +3 is considered to be a(n)

Accepted Answer

A) outlier. 
B) statistic. 
C) whisker. 
D) z-score value. 
A) outlier. 
B) statistic. 
C) whisker. 
D) z-score value.

Question 16

What is the total relative frequency? ? $$\begin{array}{l}
\text { 20XX Contest Sales }\
\begin{array}{l|c|c}
\hline \text { Salesman } & \text { Frequency } & \text { Relative Frequency } \
\hline \text { Frances Clonts } & 15 & 0.05 \
\text { Sarah Leigh } & \mid 184 & 0.62 \
\text { Devon Pride } & 37 &\\\\text { John Townes } & 62 & 0.21 \
\hline \text { Total } & \mathbf{2 9 8} &
\end{array}
\end{array}$$

Accepted Answer

A) 1 
B) 99.12 
C) 0.88 
D) Not enough information 
A) 1 
B) 99.12 
C) 0.88 
D) Not enough information

Question 17

Which of the following are necessary to be determined to define the classes for a frequency distribution with quantitative data?

Accepted Answer

A) Number of nonoverlapping bins, width of each bin, and bin limits 
B) Width of each bin and bin lower limits 
C) Number of overlapping bins, width of each bin, and bin upper limits 
D) Width of each bin and number of bins 
A) Number of nonoverlapping bins, width of each bin, and bin limits 
B) Width of each bin and bin lower limits 
C) Number of overlapping bins, width of each bin, and bin upper limits 
D) Width of each bin and number of bins

Question 18

Data collected from several entities over a period of time (minutes, hours, days, etc.) are called

Accepted Answer

A) categorical and quantitative data. 
B) time series data. 
C) source data. 
D) cross-sectional data. 
A) categorical and quantitative data. 
B) time series data. 
C) source data. 
D) cross-sectional data.

Question 19

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the frequency of the 25-28 bin? ​   ​

Accepted Answer

A) 0.05 
B) 1 
C) 0.5 
D) 4 
A) 0.05 
B) 1 
C) 0.5 
D) 4

Question 20

If covariance between two variables is near 0, it implies that

Accepted Answer

A) a positive relationship exists between the variables. 
B) the variables are not linearly related. 
C) the variables are negatively related. 
D) the variables are strongly related. 
A) a positive relationship exists between the variables. 
B) the variables are not linearly related. 
C) the variables are negatively related. 
D) the variables are strongly related.

The letter grades (A, B, C, D, F) of business analysis students are recorded by a professor. This variable's classification

Use technology to compute the standard deviation for the following sample data. 32, 41, 36, 24, 29, 30, 40, 22, 25, 37

Which graph represents a negative linear relationship between x and y?

In a survey of patients in a local hospital, 62.42% of the respondents indicated that the health care providers needed to spend more time with each patient. Who makes up the sample?

A __________ determines how far a particular value is from the mean relative to the data set's standard deviation.

Compute the relative frequencies for the data given in the table below: Grades Number of students A 16 B 28 C 33 D 13 Total 90

The correlation coefficient will always take values

_______________ acts as a representative of the population.

What is the mode of the data set given below? 35, 47, 65, 47, 22

A quantity of interest that can take on different values is known as a(n)

Scores on Ms. Bond's test have a mean of 70 and a standard deviation of 11. David has a score of 52 on Ms. Bond's test. Scores on Ms. Nash's test have a mean of 64 and a standard deviation of 6. Steven has a score of 52 on Ms. Nash's test. Which student has the higher standardized score?

Which Excel command will return all modes when more than one mode exists?

Scores on Ms. Nash's test have a mean of 64 and a standard deviation of 9. Steve has a score of 52. Convert Steve's score to a z-score. (Round to two decimal places if necessary.)

A manager of a fast food restaurant wants the drive-thru employee to ask every fifth customer if he or she is satisfied with the service. Who makes up the population?

Any data value with a z-score less than -3 or greater than +3 is considered to be a(n)

What is the total relative frequency? ? 20XX Contest Sales Salesman Frequency Relative Frequency Frances Clonts 15 0.05 Sarah Leigh \mid184 0.62 Devon Pride 37 John Townes 62 0.21 Total

Which of the following are necessary to be determined to define the classes for a frequency distribution with quantitative data?

Data collected from several entities over a period of time (minutes, hours, days, etc.) are called

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the frequency of the 25-28 bin?

If covariance between two variables is near 0, it implies that

Introduction

Data Visualization

Descriptive Data Mining

Probability: an Introduction to Modeling Uncertainty

Statistical Inference

Linear Regression

Time Series Analysis and Forecasting

Predictive Data Mining

Spreadsheet Models

Monte Carlo Simulation

Linear Optimization Models

Integer Linear Optimization Models

Nonlinear Optimization Models

Decision Analysis

Filters

Exam 2: Descriptive Statistics

The letter grades (A, B, C, D, F) of business analysis students are recorded by a professor. This variable's classification

Use technology to compute the standard deviation for the following sample data. 32, 41, 36, 24, 29, 30, 40, 22, 25, 37

Which graph represents a negative linear relationship between x and y? ​ ​ ​

In a survey of patients in a local hospital, 62.42% of the respondents indicated that the health care providers needed to spend more time with each patient. Who makes up the sample? ​

A __________ determines how far a particular value is from the mean relative to the data set's standard deviation.

Compute the relative frequencies for the data given in the table below: Grades Number of students A 16 B 28 C 33 D 13 Total 90

The correlation coefficient will always take values

_______________ acts as a representative of the population.

What is the mode of the data set given below? ​ 35, 47, 65, 47, 22 ​

A quantity of interest that can take on different values is known as a(n)

Scores on Ms. Bond's test have a mean of 70 and a standard deviation of 11. David has a score of 52 on Ms. Bond's test. Scores on Ms. Nash's test have a mean of 64 and a standard deviation of 6. Steven has a score of 52 on Ms. Nash's test. Which student has the higher standardized score?

Which Excel command will return all modes when more than one mode exists? ​

Scores on Ms. Nash's test have a mean of 64 and a standard deviation of 9. Steve has a score of 52. Convert Steve's score to a z-score. (Round to two decimal places if necessary.)

A manager of a fast food restaurant wants the drive-thru employee to ask every fifth customer if he or she is satisfied with the service. Who makes up the population?

Any data value with a z-score less than -3 or greater than +3 is considered to be a(n)

What is the total relative frequency? ? 20XX Contest Sales Salesman Frequency Relative Frequency Frances Clonts 15 0.05 Sarah Leigh \mid184 0.62 Devon Pride 37 John Townes 62 0.21 Total

Which of the following are necessary to be determined to define the classes for a frequency distribution with quantitative data?

Data collected from several entities over a period of time (minutes, hours, days, etc.) are called

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the frequency of the 25-28 bin? ​ ​

If covariance between two variables is near 0, it implies that

Introduction

Data Visualization

Descriptive Data Mining

Probability: an Introduction to Modeling Uncertainty

Statistical Inference

Linear Regression

Time Series Analysis and Forecasting

Predictive Data Mining

Spreadsheet Models

Monte Carlo Simulation

Linear Optimization Models

Integer Linear Optimization Models

Nonlinear Optimization Models

Decision Analysis

Filters

Which graph represents a negative linear relationship between x and y?

In a survey of patients in a local hospital, 62.42% of the respondents indicated that the health care providers needed to spend more time with each patient. Who makes up the sample?

What is the mode of the data set given below? 35, 47, 65, 47, 22

Which Excel command will return all modes when more than one mode exists?

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the frequency of the 25-28 bin?