SCENARIO 2-20-B A recent consumer survey on holiday shopping reveals the following information on the types of stores at which consumers plan to shop (The table is also available in the file Scenario2-20- DataB.xlsx: \[\begin{array} { | l | c | } \hline \text { Types of Stores } & \% \text { of Customers } \\ \hline \text { Stand-alone "big box" stores } & 54 \\ \hline \text { Traditional mall } & 61 \\ \hline \text { Local independent stores not in a mall } & 35 \\ \hline \text { Strip mall or mini mall } & 25 \\ \hline \text { Town hall mall } & 14 \\ \hline \text { I do not plan to shop at any of these } & 9 \\ \hline \end{array}\] -Referring to Scenario 20-20-B, construct a Pareto chart for the types of stores customers plan to shop at.

The answer of SCENARIO 2-20-B A recent consumer survey on holiday...

SCENARIO 2-13 Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons) in a day by 25 drive-through car wash operations in Phoenix. \[\begin{array} { l } 9\mid 147 \\ 10 \mid 02238 \\ 11 \mid 135566777 \\ 12 \mid 223489 \\ 13 \mid 02 \end{array}\] -Referring to Scenario 2-13, if a percentage histogram for the detergent data is constructed, using "9.0 but less than 10.0 gallons" as the first class, the percentage of drive-through car wash operations that use "12.0 but less than 13.0 gallons" of detergent would be ________.

The answer of SCENARIO 2-13 Given below is the stem-and-leaf display...

SCENARIO 2-11 The ordered array below resulted from selecting a sample of 25 batches of 500 computer chips and determining how many in each batch were defective. Defects \[\begin{array} { l l r r r r r r r r r r r } 1 & 2 & 4 & 4 & 5 & 5 & 6 & 7 & 9 & 9 & 12 & 12 & 15 \\ 17 & 20 & 21 & 23 & 23 & 25 & 26 & 27 & 27 & 28 & 29 & 29 & \end{array}\] -Referring to Scenario 2-11, construct a relative frequency or percentage distribution for the defects data, using "0 but less than 5" as the first class.

The answer of SCENARIO 2-11 The ordered array below resulted from...

SCENARIO 2-5 The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier. \[\begin{array} { l l } \text { Time (in Minutes) } & \begin{array} { l } \text { Relative } \\ \text { Frequency } \end{array} \\ \hline 0 \text { but less than } 5 & 0.37 \\ 5 \text { but less than } 10 & 0.22 \\ 10 \text { but less than } 15 & 0.15 \\ 15 \text { but less than } 20 & 0.10 \\ 20 \text { but less than } 25 & 0.07 \\ 25 \text { but less than } 30 & 0.07 \\ 30 \text { or more } & 0.02 \end{array}\] -Referring to Scenario 2-5, if 1,000 calls were randomly sampled, how many calls lasted under 10 minutes?

A) 220 B) 370 C) 410 D) 590 A) 220 B) 370 C) 410 D) 590

SCENARIO 2-13 Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons) in a day by 25 drive-through car wash operations in Phoenix. \[\begin{array} { l } 9\mid 147 \\ 10 \mid 02238 \\ 11 \mid 135566777 \\ 12 \mid 223489 \\ 13 \mid 02 \end{array}\] -Referring to Scenario 2-13, if a percentage histogram for the detergent data is constructed, using "9.0 but less than 10.0 gallons" as the first class, what percentage of drive-through car wash operations use less than 12 gallons of detergent in a day?

The answer of SCENARIO 2-13 Given below is the stem-and-leaf display...

SCENARIO 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. \[\begin{array} { l c c c c } & \text { For } & \text { Neutral } & \text { Against }& \text { Totals } \\ \hline\text { Female } & 38 & 54 & 12 & 104 \\ \text { Male } & 12 & 36 & 48 & 96 \\ \hline \text { Totals } & 50 & 90 & 60 & 200 \end{array}\] -Referring to Scenario 2-12, if the sample is a good representation of the population, we can expect _______ percent of the males in the population will be against the plan.

The answer of SCENARIO 2-12 The table below contains the opinions...

SCENARIO 2-17 The following table presents total retail sales in millions of dollars for the leading apparel companies over a two-year period in the past. \[\begin{array} { | l | r | r | } \hline \text { APPAREL COMPANY } & \text { Year 1 } & { \text { Year 2 } } \\ \hline \text { Gap } & 1,159.0 & 962.0 \\ \hline \text { TJX } & 781.7 & 899.0 \\ \hline \text { Limited } & 596.5 & 620.4 \\ \hline \text { Kohl's } & 544.9 & 678.9 \\ \hline \text { Nordstrom } & 402.6 & 418.3 \\ \hline \text { Talbots } & 139.9 & 130.1 \\ \hline \text { AnnTaylor } & 114.2 & 124.8 \\ \hline \end{array}\] -Referring to Scenario 2-17, among the 8 stores, _______ saw a sales decline.

The answer of SCENARIO 2-17 The following table presents total retail...

Exam 2: Organizing and Visualizing

SCENARIO 2-20-B A recent consumer survey on holiday shopping reveals the following information on the types of stores at which consumers plan to shop (The table is also available in the file Scenario2-20- DataB.xlsx: Types of Stores \% of Customers Stand-alone "big box" stores 54 Traditional mall 61 Local independent stores not in a mall 35 Strip mall or mini mall 25 Town hall mall 14 I do not plan to shop at any of these 9 -Referring to Scenario 20-20-B, construct a Pareto chart for the types of stores customers plan to shop at.

(Essay)

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Question 81

If the values of the seventh and eighth class in a cumulative percentage distribution are the same, we know that there are no observations in the eighth class.

(True/False)

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Question 82

SCENARIO 2-13 Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons) in a day by 25 drive-through car wash operations in Phoenix. 9\mid147 10\mid02238 11\mid135566777 12\mid223489 13\mid02 -Referring to Scenario 2-13, if a percentage histogram for the detergent data is constructed, using "9.0 but less than 10.0 gallons" as the first class, the percentage of drive-through car wash operations that use "12.0 but less than 13.0 gallons" of detergent would be ________.

(Short Answer)

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Question 83

Given below is the scatter plot of the price/earnings ratio versus earnings per share of 20 U.S. companies. There appear to be a positive relationship between price/earnings ratio and earnings per share.

(True/False)

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Question 84

SCENARIO 2-11 The ordered array below resulted from selecting a sample of 25 batches of 500 computer chips and determining how many in each batch were defective. Defects 1 2 4 4 5 5 6 7 9 9 12 12 15 17 20 21 23 23 25 26 27 27 28 29 29 -Referring to Scenario 2-11, construct a relative frequency or percentage distribution for the defects data, using "0 but less than 5" as the first class.

(Essay)

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Question 85

A research analyst was directed to arrange raw data collected on the yield of wheat, ranging from 40 to 93 bushels per acre, in a frequency distribution. He should choose 30 as the class interval width.

(True/False)

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Question 86

SCENARIO 2-16 The figure below is the percentage polygon for the amount of calories for a sample of 36 pizzas products where the upper limits of the intervals are: 310, 340, 370, 400 and 430. -Referring to Scenario 2-16, roughly what percentage of pizza products contains between 340 and 400 calories?

(Multiple Choice)

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Question 87

When comparing two or more large sets of numerical data, the distributions being developed should use the same ________.

(Short Answer)

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Question 88

SCENARIO 2-5 The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier. Time (in Minutes) Relative Frequency 0 but less than 5 0.37 5 but less than 10 0.22 10 but less than 15 0.15 15 but less than 20 0.10 20 but less than 25 0.07 25 but less than 30 0.07 30 or more 0.02 -Referring to Scenario 2-5, if 1,000 calls were randomly sampled, how many calls lasted under 10 minutes?

(Multiple Choice)

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Question 89

SCENARIO 2-20-B A recent consumer survey on holiday shopping reveals the following information on the types of stores at which consumers plan to shop (The table is also available in the file Scenario2-20- DataB.xlsx: Types of Stores \% of Customers Stand-alone "big box" stores 54 Traditional mall 61 Local independent stores not in a mall 35 Strip mall or mini mall 25 Town hall mall 14 I do not plan to shop at any of these 9 -Referring to Scenario 20-20-B, what are the top 3 "vital few" types of stores that customers plan to shop at.

(Essay)

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Question 90

SCENARIO 2-10 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Scenario 2-10, the number of job applicants who scored 50 or above is _______.

(Short Answer)

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Question 91

SCENARIO 2-13 Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons) in a day by 25 drive-through car wash operations in Phoenix. 9\mid147 10\mid02238 11\mid135566777 12\mid223489 13\mid02 -Referring to Scenario 2-13, if a percentage histogram for the detergent data is constructed, using "9.0 but less than 10.0 gallons" as the first class, what percentage of drive-through car wash operations use less than 12 gallons of detergent in a day?

(Short Answer)

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Question 92

SCENARIO 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. For Neutral Against Totals Female 38 54 12 104 Male 12 36 48 96 Totals 50 90 60 200 -Referring to Scenario 2-12, if the sample is a good representation of the population, we can expect _______ percent of the males in the population will be against the plan.

(Short Answer)

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Question 93

Given below is the scatter plot of the number of employees and the total revenue ($millions) of 20 U.S. companies. There appears to be a positive relationship between total revenue and the number of employees.

(True/False)

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Question 94

SCENARIO 2-20-A A recent consumer survey on holiday shopping reveals the following information on the types of stores at which consumers plan to shop (The table is also available in the file Scenario2-20- DataA.xlsx: Types of Stores \% of Customers Stand-alone "big box" stores 63 Traditional mall 53 Local independent stores not in a mall 42 Strip mall or mini mall 27 Town hall mall 17 I do not plan to shop at any of these 12 -Referring to Scenario 2-20-A, what are the top 3 "vital few" types of stores that customers plan to shop at.

(Essay)

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Question 95

When constructing a frequency distribution, classes should be selected so that they are of equal width.

(True/False)

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Question 96

The Guidelines for Developing Visualizations recommend always starting the scale for a vertical axis at zero.

(True/False)

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Question 97

SCENARIO 2-16 The figure below is the percentage polygon for the amount of calories for a sample of 36 pizzas products where the upper limits of the intervals are: 310, 340, 370, 400 and 430. -Referring to Scenario 2-16, roughlyCalories what percentage of pizza products contains between 400 and 430 calories?

(Multiple Choice)

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Question 98

SCENARIO 2-17 The following table presents total retail sales in millions of dollars for the leading apparel companies over a two-year period in the past. APPAREL COMPANY Year 1 Year 2 Gap 1,159.0 962.0 TJX 781.7 899.0 Limited 596.5 620.4 Kohl's 544.9 678.9 Nordstrom 402.6 418.3 Talbots 139.9 130.1 AnnTaylor 114.2 124.8 -Referring to Scenario 2-17, among the 8 stores, _______ saw a sales decline.

(Short Answer)

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Question 99

In general, grouped frequency distributions should have between 5 and 15 class intervals.

(True/False)

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Question 100

If the values of the seventh and eighth class in a cumulative percentage distribution are the same, we know that there are no observations in the eighth class.

Given below is the scatter plot of the price/earnings ratio versus earnings per share of 20 U.S. companies. There appear to be a positive relationship between price/earnings ratio and earnings per share.

A research analyst was directed to arrange raw data collected on the yield of wheat, ranging from 40 to 93 bushels per acre, in a frequency distribution. He should choose 30 as the class interval width.

When comparing two or more large sets of numerical data, the distributions being developed should use the same ________.

SCENARIO 2-10 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Scenario 2-10, the number of job applicants who scored 50 or above is _______.

Given below is the scatter plot of the number of employees and the total revenue ($millions) of 20 U.S. companies. There appears to be a positive relationship between total revenue and the number of employees.

When constructing a frequency distribution, classes should be selected so that they are of equal width.

The Guidelines for Developing Visualizations recommend always starting the scale for a vertical axis at zero.

In general, grouped frequency distributions should have between 5 and 15 class intervals.

Defining and Collecting Data

Numerical Descriptive Measures

Basic Probability

Discrete Probability Distributions

The Normal Distribution and Other Continuous Distributions

Sampling Distributions

Confidence Interval Estimation

Fundamentals of Hypothesis Testing: One-Sample Tests

Two-Sample Tests

Analysis of Variance

Chi-Square and Nonparametric

Simple Linear Regression

Introduction to Multiple

Multiple Regression

Time-Series Forecasting

Getting Ready to Analyze Data

Statistical Applications in Quality Management

Decision Making

Probability and Combinatorics

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