close solutoin list

The Car Repair Ratings website provides consumer reviews and ratings for garages in the United States and Canada. The time customers wait for service to be completed is one of the categories rated. The following table provides a summary of the wait-time ratings (1 = Slow/Delays; 10 = Quick/On Time) for 40 randomly selected garages located in the province of Ontario, Canada (Car Repair Ratings website, November 14, 2012). Wait-Time Rating Number of Garages 1 6 2 2 3 3 4 2 5 5 6 2 7 4 8 5 9 5 10 6 a. Develop a probability distribution for x = wait-time rating. b. Any garage that receives a wait-time rating of at least 9 is considered to provide outstanding service. If a consumer randomly selects one of the 40 garages for their next car service, what is the probability the garage selected will provide outstanding wait-time service? c. What is the expected value and variance for x ? Suppose that 7 of the 40 garages reviewed were new car dealerships. Of the 7 new car dealerships, two were rated as providing outstanding wait-time service. Compare the likelihood of a new car dealership achieving an outstanding wait-time service rating as compared to other types of service providers.

BuyFind

STATISTICS F/BUSINESS+ECONOMICS-TE...

13th Edition
Anderson
Publisher: CENGAGE L
ISBN: 9781305881884
BuyFind

STATISTICS F/BUSINESS+ECONOMICS-TE...

13th Edition
Anderson
Publisher: CENGAGE L
ISBN: 9781305881884

Solutions

Chapter
Section
Chapter 5, Problem 60SE
Textbook Problem

The Car Repair Ratings website provides consumer reviews and ratings for garages in the United States and Canada. The time customers wait for service to be completed is one of the categories rated. The following table provides a summary of the wait-time ratings (1 = Slow/Delays; 10 = Quick/On Time) for 40 randomly selected garages located in the province of Ontario, Canada (Car Repair Ratings website, November 14, 2012).

Wait-Time

Rating

Number of

Garages

1 6
2 2
3 3
4 2
5 5
6 2
7 4
8 5
9 5
10 6
  1. a. Develop a probability distribution for x = wait-time rating.
  2. b. Any garage that receives a wait-time rating of at least 9 is considered to provide outstanding service. If a consumer randomly selects one of the 40 garages for their next car service, what is the probability the garage selected will provide outstanding wait-time service?
  3. c. What is the expected value and variance for x?

Suppose that 7 of the 40 garages reviewed were new car dealerships. Of the 7 new car dealerships, two were rated as providing outstanding wait-time service. Compare the likelihood of a new car dealership achieving an outstanding wait-time service rating as compared to other types of service providers.

Expert Solution

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

See Solution

*Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects.

Chapter 5 Solutions

STATISTICS F/BUSINESS+ECONOMICS-TEXT
Show all chapter solutions
Ch. 5.2 - A technician services mailing machines at...Ch. 5.2 - Time Warner Cable provides television and Internet...Ch. 5.2 - A psychologist determined that the number of...Ch. 5.2 - The following table is a partial probability...Ch. 5.3 - The following table provides a probability...Ch. 5.3 - The following table provides a probability...Ch. 5.3 - During the summer of 2014, Coldstream Country Club...Ch. 5.3 - The American Housing Survey reported the following...Ch. 5.3 - West Virginia has one of the highest divorce rates...Ch. 5.3 - The probability distribution for damage claims...Ch. 5.3 - The following probability distributions of job...Ch. 5.3 - The demand for a product of Carolina Industries...Ch. 5.3 - In Gallups Annual Consumption Habits Poll,...Ch. 5.3 - The J. R. Ryland Computer Company is considering a...Ch. 5.4 - Given below is a bivariate distribution for the...Ch. 5.4 - A person is interested in constructing a...Ch. 5.4 - The Chamber of Commerce in a Canadian city has...Ch. 5.4 - PortaCom has developed a design for a high-quality...Ch. 5.4 - J.P. Morgan Asset Management publishes information...Ch. 5.4 - In addition to the information in exercise 29 on...Ch. 5.5 - Consider a binomial experiment with two trials and...Ch. 5.5 - Consider a binomial experiment with n = 10 and p =...Ch. 5.5 - Consider a binomial experiment with n = 20 and p =...Ch. 5.5 - For its Music 360 survey, Nielsen Co. asked...Ch. 5.5 - The Center for Medicare and Medical Services...Ch. 5.5 - When a new machine is functioning properly, only...Ch. 5.5 - According to a 2013 study by the Pew Research...Ch. 5.5 - Military radar and missile detection systems are...Ch. 5.5 - Market-share-analysis company Net Applications...Ch. 5.5 - A study conducted by the Pew Research Center...Ch. 5.5 - A university found that 20% of its students...Ch. 5.5 - A Gallup Poll showed that 30% of Americans are...Ch. 5.5 - According to a 2010 study conducted by the...Ch. 5.6 - Consider a Poisson distribution with = 3. a....Ch. 5.6 - Consider a Poisson distribution with a mean of two...Ch. 5.6 - Phone calls arrive at the rate of 48 per hour at...Ch. 5.6 - During the period of time that a local university...Ch. 5.6 - In 2011, New York City had a total of 11,232 motor...Ch. 5.6 - Airline passengers arrive randomly and...Ch. 5.6 - According to the National Oceanic and Atmospheric...Ch. 5.6 - Over 500 million tweets are sent per day (Digital...Ch. 5.7 - Suppose N = 10 and r = 3. Compute the...Ch. 5.7 - Suppose N = 15 and r = 4. What is the probability...Ch. 5.7 - A recent survey showed that a majority of...Ch. 5.7 - Blackjack, or twenty-one as it is frequently...Ch. 5.7 - Axline Computers manufactures personal computers...Ch. 5.7 - The Zagat Restaurant Survey provides food, decor,...Ch. 5.7 - The Troubled Asset Relief Program (TARP), passed...Ch. 5 - The U.S. Coast Guard (USCG) provides a wide...Ch. 5 - The Car Repair Ratings website provides consumer...Ch. 5 - The budgeting process for a midwestern college...Ch. 5 - A bookstore at the Hartsfield-Jackson Airport in...Ch. 5 - The Knowles/Armitage (KA) group at Merrill Lynch...Ch. 5 - The Pew Research Center surveyed adults who...Ch. 5 - The following table shows the percentage of...Ch. 5 - Many companies use a quality control technique...Ch. 5 - PBS News Hour reported that 39.4% of Americans...Ch. 5 - Mahoney Custom Home Builders, Inc. of Canyon Lake,...Ch. 5 - Cars arrive at a car wash randomly and...Ch. 5 - A new automated production process averages 1.5...Ch. 5 - A regional director responsible for business...Ch. 5 - Customer arrivals at a bank are random and...Ch. 5 - A deck of playing cards contains 52 cards, four of...Ch. 5 - U.S. News World Reports ranking of Americas best...Ch. 5 - Go Bananas! Great Grasslands Grains, Inc. (GGG)...

Additional Math Textbook Solutions

Find more solutions based on key concepts
Show solutions
Use a production possibilities frontier to describe the idea of efficiency.

Principles of Microeconomics (MindTap Course List)

What are the underlying assumptions of Theory X and Theory Y?

Foundations of Business (MindTap Course List)

COST OF PREFERRED STOCK INCLUDING FLOTATION Trivoli Industries plans to issue perpetual preferred stock with an...

Fundamentals of Financial Management, Concise Edition (with Thomson ONE - Business School Edition, 1 term (6 months) Printed Access Card) (MindTap Course List)

List the four components of GDP. Give an example of each.

Principles of Macroeconomics (MindTap Course List)

Describe the elements of an abstract.

Research Methods for the Behavioral Sciences (MindTap Course List)

Factoring Completely Factor the expression completely. 98. 30x3 + 15x4

Precalculus: Mathematics for Calculus (Standalone Book)

If sin=47, find csc.

Trigonometry (MindTap Course List)

Solve the following problems and reduce to lowest terms. 23+16+1112

Contemporary Mathematics for Business & Consumers

In Exercises 4756, solve the given equation for the indicated variable. 81=3x

Finite Mathematics and Applied Calculus (MindTap Course List)

Given: UT bisects WUV,WU=8,UV=12,WT=6 Find: TV

Elementary Geometry for College Students

Evaluate the integral. 26. x2(3+4x4x2)3/2dx

Single Variable Calculus: Early Transcendentals

True or False: If a function is not increasing on an interval, then it is decreasing on the interval.

Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th

In Exercises 107-120, factor each expression completely. 116. (x + y)2 1

Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach

Find each quotient and check: 6b2+13b282b+7

Elementary Technical Mathematics

Round all answers to two decimal places. Exponential Regression In Exercises S-7 through S-14, use exponential ...

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

43. In August 2012, tropical storm Isaac formed in the Caribbean and was headed for the Gulf of Mexico. There w...

Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)

Raindrops Keep Falling ... When a bottle of liquid refreshment was opened recently, the following factoid was f...

A First Course in Differential Equations with Modeling Applications (MindTap Course List)