BuyFind*arrow_forward*

13th Edition

Anderson

Publisher: CENGAGE L

ISBN: 9781305881884

Chapter 5.5, Problem 39E

Textbook Problem

6407 views

Market-share-analysis company Net Applications monitors and reports on Internet browser usage. According to Net Applications, in the summer of 2014, Google’s Chrome browser exceeded a 20% market share for the first time, with a 20.37% share of the browser market (*Forbes* website, December 15, 2014). For a randomly selected group of 20 Internet browser users, answer the following questions.

- a. Compute the probability that exactly 8 of the 20 Internet browser users use Chrome as their Internet browser.
- b. Compute the probability that at least 3 of the 20 Internet browser users use Chrome as their Internet browser.
- c. For the sample of 20 Internet browser users, compute the expected number of Chrome users.
- d. For the sample of 20 Internet browser users, compute the variance and standard deviation for the number of Chrome users.

**a.**

To determine

Find the probability that exactly 8 of the 20 Internet browser users use chrome as their internet browser.

**Calculation:**

A random sample of 20 Internet browser users is selected. The percentage share of the browser market is 20.37% for google chrome.

Define the random variable *x* as the number of internet browsers who use google chrome. Here, a random sample (*n*) of 20 Internet browser users is selected is taken. Each Internet browser user is independent of the other. Also, there are two possible outcomes, the Internet browser user uses google chrome or not (success or failure). It was found that 20.37% of the Internet browser users use google chrome. Thus, the probability of success (*p*) is 0.2037. Thus, *x* follows binomial distribution.

The probability of obtaining *x* successes in *n* independent trails of a binomial experiment is,

Where, *p* is the probability of success.

Substitute values

**b.**

To determine

Find the probability that at least 3 of the 20 Internet browser users use chrome as their internet browser.

**c.**

To determine

Compute the expected number of chrome users.

**d.**

To determine

Compute the variance and standard deviation for the number of chrome users.

STATISTICS F/BUSINESS+ECONOMICS-TEXT

Show all chapter solutions

Ch. 5.1 - Consider the experiment of tossing a coin twice....Ch. 5.1 - Consider the experiment of a worker assembling a...Ch. 5.1 - Three students scheduled interviews for summer...Ch. 5.1 - In January the U.S. unemployment rate dropped to...Ch. 5.1 - To perform a certain type of blood analysis, lab...Ch. 5.1 - Listed is a series of experiments and associated...Ch. 5.2 - The probability distribution for the random...Ch. 5.2 - The following data were collected by counting the...Ch. 5.2 - For unemployed persons in the United States, the...Ch. 5.2 - The percent frequency distributions of job...

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)...

Find more solutions based on key concepts

Show solutions Name two macroeconomic variables that decline when the economy goes into a recession. Name one macroeconomic va...

Principles of Macroeconomics (MindTap Course List)

What is inflation and what causes it?

Principles of Microeconomics (MindTap Course List)

Consider the following information about travelers on vacation (based partly on a recent Travelocity poll): 40%...

Probability and Statistics for Engineering and the Sciences

(Short-Run Loss) Suppose a firm decides to shut down in the short run. What is the resulting loss?

ECON: MICRO4 (New, Engaging Titles from 4LTR Press)

What is the role of the financial system? Name and describe two markets that are part of the financial system i...

Brief Principles of Macroeconomics (MindTap Course List)

Water is necessary for life. Is the marginal benefit of a glass of water large or small?

Principles of Economics (MindTap Course List)

Its easy to use cliches because they just roL1 off the tongue. Whats wrong with tried-and-true expressions such...

Essentials of Business Communication (MindTap Course List)

PRESENT AND FUTURE VALUES FOR DIFFERENT PERIODS Find the following values using the equations and then a financ...

Fundamentals Of Financial Management, Concise Edition (mindtap Course List)

Adjustments and financial statements Several years ago, your brother opened Magna Appliance Repairs. He made a ...

Corporate Financial Accounting

What is the conceptual framework of accounting?

Cornerstones of Financial Accounting

Financial statements The amounts of the assets and liabilities of Wilderness Travel Service at April 50, 2018, ...

Financial & Managerial Accounting

BOND VALUATION Bond X is noncallable and has 20 years to maturity, an 8% annual coupon, and a 1,000 par value. ...

Fundamentals of Financial Management, Concise Edition (MindTap Course List)

COST OF COMMON EQUITY WITH AND WITHOUT FLOTATION The Evanec Companys next expected dividend, D1 is 3.18; its gr...

Fundamentals of Financial Management (MindTap Course List)

What methods are used?

Foundations of Business (MindTap Course List)

Regarding data stores, compare and contrast business event data and master data.

Accounting Information Systems

Indicate how important each characteristic is to you. Answer according to your feelings about the most recent j...

Management, Loose-Leaf Version

Sales-related transactions using perpetual inventory system The following selected transactions were completed ...

Financial And Managerial Accounting

BALANCE SHEET Based on Problem 2-9B, prepare a balance sheet for David Segal as of October 31, 20--.

College Accounting, Chapters 1-27

Assume the same facts as in Exercise 9-27, except that the book value of the press traded in is 108,500. (a) Wh...

Financial Accounting

Why is productivity important?

Essentials of Economics (MindTap Course List)

Given a description of a companys marketing mix, classify the elements of the marketing mix and the category of...

Contemporary Marketing

Explain the consumers postpurchase evaluation process

MKTG 12:STUDENT ED.-TEXT

Table 1.8 shows a data set containing information for 25 of the shadow stocks tracked by the American Associati...

Statistics for Business & Economics, Revised (MindTap Course List)

How are each of the following events likely to affect the U.S. trade balance? a. The European price level incre...

Exploring Economics

In the cost formula, the term 128,000,000 a. is the total variable cost. b. is the dependent variable. c. is th...

Managerial Accounting: The Cornerstone of Business Decision-Making

Reece Financial Services Co., which specializes in appliance repair services, is owned and operated by Joni Ree...

Financial Accounting

Quick ratio Adieu Company reported the following current assets and liabilities for December 31 for two recent ...

Financial & Managerial Accounting

Dudley Company failed to recognize the following accruals. It also recorded the prepaid expenses and unearned r...

Intermediate Accounting: Reporting And Analysis

Which of the following statements about the ITF technique for testing is NOT correct? a. Applications may be te...

Accounting Information Systems

Net present value method for a service company Carnival Corporation has recently placed into service some of th...

Accounting (Text Only)

In April, J. Rodriguez established an apartment rental service. The account headings are presented below. Trans...

College Accounting (Book Only): A Career Approach

Is an initial public offering an example of a primary or a secondary market transaction? Explain.

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

For each of the three theories for the upward slope of the short-run aggregate-supply curve, carefully explain ...

Principles of Macroeconomics (MindTap Course List)

CALCULATING AND JOURNALIZING DEPRECIATION Equipment records for Byerly Construction Co. for the year follow. By...

College Accounting, Chapters 1-27 (New in Accounting from Heintz and Parry)

Why do public utilities generally use different capital structure than biotechnology companies?

Fundamentals of Financial Management (MindTap Course List)

Figure 9.9 (p. 346) depicts the transmission of an electronic message incorporating public key cryptography, en...

Pkg Acc Infor Systems MS VISIO CD

A merchandising company shows 8,842 in the Supplies account on the preadjusted trial balance. After taking inve...

College Accounting (Book Only): A Career Approach

Compare the monopolistically competitive firms demand curve to those of a perfect competitor and a monopolist.

Economics For Today

Suppose that the U.S. economy grows and that the Swiss economy does not. How will this difference affect the ex...

Economics (MindTap Course List)

In the Illustrative Case in this chapter, payroll transactions for Brookins Company were analyzed, journalized,...

PAYROLL ACCT.,2019 ED.(LL)-TEXT

Unlike the small logistics models presented here, real-world logistics problems can be huge. Imagine the global...

Practical Management Science

Avion, Inc. Susan Dey and Bill Mifflin, procurement managers at Avion, Inc., sat across from each other and rev...

Purchasing and Supply Chain Management

Process yield Perez Inc. manufactures various types of furniture including couches, tables, and chairs. During ...

Survey of Accounting (Accounting I)

Novel Toys, Inc., manufactures plastic water guns. Each guns left and right frames are produced in the Molding ...

Cornerstones of Cost Management (Cornerstones Series)

If salaries payable was 100,000 at the beginning of the year and 75,000 at the end of the year, should the 25,0...

Corporate Financial Accounting

Critical Region Method: Testing 12;1,2Known Redo Problem 11(a) using the critical region method, and compare yo...

Understanding Basic Statistics

Data for a sample of 55 members of the Baseball Hall of Fame in Cooperstown, New York, are shown here. Each obs...

Essentials Of Statistics For Business & Economics

Two sociologists administered questionnaires to samples of undergraduates that measured attitudes toward interp...

Essentials Of Statistics

A population has a mean of =30 and a standard deviation of =8 If the population distribution is normal, what is...

Statistics for The Behavioral Sciences (MindTap Course List)

Identify the characteristics that differentiate different sets of data and identify the hypothesis test(s) appr...

Research Methods for the Behavioral Sciences (MindTap Course List)

Explain why blinding is a reasonable strategy in many experiments.

Introduction To Statistics And Data Analysis

Find the median for the distribution of scores in the following frequency distribution table. X f 6 1 5 1 4 4 3...

Essentials of Statistics for The Behavioral Sciences (MindTap Course List)

A recent survey at a major corporation found that employees who regularly participated in the company fitness p...

Research Methods for the Behavioral Sciences (MindTap Course List)

In Exercises 7-28, perform the indicated operations and simplify each expression. 27. 100[(t2+20t+100)(2t+10)(t...

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

Why is the number 1 excluded from being a base of a logarithmic function?

Intermediate Algebra

If steel weighs 0.264 1b/cubic inch, what is the weight of this steel shaft? Round the answer to the nearest te...

Mathematics For Machine Technology

Determining Continuity In Exercises 11-40, describe the interval(s) on which the function is continuous. Explai...

Calculus: An Applied Approach (MindTap Course List)

Which of the following is not a hypothesis of Rolles Theorem? a) f is continuous on [a, b]. b) f(a) = f(b). c) ...

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

For the third proof, consider the two squares shown in Figure 3. Both squares are of the same size, so their ar...

Trigonometry (MindTap Course List)

The curve given by r(t) = 2i + tj + 2tk is a:
line
plane
spiral
circle

Study Guide for Stewart's Multivariable Calculus, 8th

Let a=log2,b=log3, and c=log7. In Exercises 2946, use the logarithm identities to express the given quantity in...

Finite Mathematics

In Exercise 1 to 10, classify each statement as true or false. CE=ED

Elementary Geometry for College Students

Evaluating Functions Use the function to evaluate the indicated expressions and simplify. 38. f(x) = 6x 18; f(...

Precalculus: Mathematics for Calculus (Standalone Book)

Solve each equation: 102x=42

Elementary Technical Mathematics

Evaluate the integral, if it exists. sinh(1+4x)dx

Single Variable Calculus: Early Transcendentals

Finding Partial Derivatives In Exercises 1518, find w/s and w/t using the appropriate Chain Rule. Evaluate each...

Multivariable Calculus

In Exercises 39 and 40, determine whether the pair of sets are disjoint. a. {1,2,3,4},{4,5,6,7} b. {a,c,e,g},{b...

Finite Mathematics for the Managerial, Life, and Social Sciences

Prove that the equalities in Exercises 111 hold for all x,y,zandw in Z. Assume only the basic postulates for Z ...

Elements Of Modern Algebra

For each of the graphs in 8 and 9: (i) Find all edges that are incidents to v1 . (ii) Find all vertices that ar...

Discrete Mathematics With Applications

In Exercises 120, write the given number in expanded form, or explain why there is no such number. 458

Mathematics: A Practical Odyssey

Using the Second Partials Test In Exercises 9-24, find all relative extrema and saddle points of the function. ...

Calculus: Early Transcendental Functions

A region R in the xy-plane is given. Find equations for a transformation T that maps a rectangular region S in ...

Calculus: Early Transcendentals

Find f in terms of g. f(x) = g(x2)

Single Variable Calculus: Early Transcendentals, Volume I

Find the zero of each polynomial function and state the multiplicity of each. State whether the graph touches t...

College Algebra (MindTap Course List)

Demand and Profit To generate a profit from its new oTunes service, OHaganBooks.com needs to know how the deman...

Finite Mathematics and Applied Calculus (MindTap Course List)

A package in the shape of a rectangular box can be mailed by the US Postal Service if the sum of its length and...

Multivariable Calculus

In Exercises 3148, (a) factor the given expression, and (b) set the expression equal to zero and solve for the ...

Applied Calculus

The bisectors of two consecutive angles of HJKL are shown. What can you conclude regarding P?

Elementary Geometry For College Students, 7e

Classify each function as a power function, root function, polynomial (state its degree), rational function, al...

Single Variable Calculus

Write the following numbers in word form. 34.581

Contemporary Mathematics for Business & Consumers

Classify each function as a power function, root function, polynomial state its degree, rational function, alge...

Calculus (MindTap Course List)

Finding a for a Given In Exercises 39-44. find the limit L. Then find such that f(x)L whenever 0xc for (a) =...

Calculus of a Single Variable

Verifying a Limit by the Definition In Exercises 3-6, use the definition of the limit of a function of two vari...

Calculus (MindTap Course List)

Horizontal Tangent Plane In Exercises 37-42, find the I point(s) on the surface at which the tangent plane is h...

Calculus: Early Transcendental Functions (MindTap Course List)

Draw a horizontal line segment 10cm long with left endpoint A and right endpoint C. See the diagram at the left...

Mathematical Excursions (MindTap Course List)

Evaluating Formulas In Exercises S-21 through S-30, you are given a formula that you are asked to evaluate with...

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

47. Pollution A factory is damping pollutants into a river at a rate given by tons per week, where t is the tim...

Mathematical Applications for the Management, Life, and Social Sciences

Some manufacturers claim that non-hybrid sedan cars have a lower mean miles-per-gallon (mpg) than hybrid ones. ...

Introductory Statistics

17. A manager of a large corporation recommends a $10,000 raise be given to keep a valued subordinate from movi...

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

For the following exercises, (a) determine the domain and the range of each relation, and (b) state whether the...

Calculus Volume 1

Construct a mathematical model for a radioactive series of four elements W, X, Y, and Z, where Z is a stable el...

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