Bundle: Modern Business Statistics with Microsoft Office Excel, Loose-Leaf Version, 6th + MindTap Business Statistics, 2 terms (12 months) Printed Access Card

6th Edition

ISBN: 9781337589383

Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran

Publisher: Cengage Learning

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Concept explainers

Addition Rule of Probability

It simply refers to the likelihood of an event taking place whenever the occurrence of an event is uncertain. The probability of a single event can be calculated by dividing the number of successful trials of that event by the total number of trials.

Expected Value

When a large number of trials are performed for any random variable ‘X’, the predicted result is most likely the mean of all the outcomes for the random variable and it is known as expected value also known as expectation. The expected value, also known …

Probability Distributions

Understanding probability is necessary to know the probability distributions. In statistics, probability is how the uncertainty of an event is measured. This event can be anything. The most common examples include tossing a coin, rolling a die, or choosi…

Basic Probability

The simple definition of probability it is a chance of the occurrence of an event. It is defined in numerical form and the probability value is between 0 to 1. The probability value 0 indicates that there is no chance of that event occurring and the prob…

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Textbook Question

Chapter 4, Problem 55SE

A large consumer goods company ran a television advertisement for one of its soap products. On the basis of a survey that was conducted, probabilities were assigned to the following events.

B = individual purchased the product

S = individual recalls seeing the advertisement

B ∩ S = individual purchased the product and recalls seeing the advertisement

The probabilities assigned were P(B) = .20, P(S) = .40, and P(B ∩ S) = .12.

a. What is the probability of an individual’s purchasing the product given that the individual recalls seeing the advertisement? Does seeing the advertisement increase the probability that the individual will purchase the product? As a decision maker, would you recommend continuing the advertisement (assuming that the cost is reasonable)?
b. Assume that individuals who do not purchase the company’s soap product buy from its competitors. What would be your estimate of the company’s market share? Would you expect that continuing the advertisement will increase the company’s market share? Why or why not?
c. The company also tested another advertisement and assigned it values of P(S) = .30 and P(B ∩ S) = .10. What is P(B ∣ S) for this other advertisement? Which advertisement seems to have had the bigger effect on customer purchases?

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Chapter 4, Problem 54SE

Chapter 4, Problem 56SE

Chapter 4 Solutions

Bundle: Modern Business Statistics with Microsoft Office Excel, Loose-Leaf Version, 6th + MindTap Business Statistics, 2 terms (12 months) Printed Access Card

Ch. 4.1 - 1. An experiment has three steps with three...Ch. 4.1 - 2. How many ways can three items be selected from...Ch. 4.1 - 3. How many permutations of three items can be...Ch. 4.1 - Prob. 4E Ch. 4.1 - 5. Suppose an experiment has five equally likely...Ch. 4.1 - Prob. 6E Ch. 4.1 - Prob. 7E Ch. 4.1 - 8. In the city of Milford, applications for zoning...Ch. 4.1 - Prob. 9E Ch. 4.1 - 10. The following table shows the percentage of...

Ch. 4.1 - Tri-State Smokers. A Gallup Poll of U.S. adults...Ch. 4.1 - 12. The Powerball lottery is played twice each...Ch. 4.1 - 13. A company that manufactures toothpaste is...Ch. 4.2 - 14. An experiment has four equally likely...Ch. 4.2 - 15. Consider the experiment of selecting a playing...Ch. 4.2 - 16. Consider the experiment of rolling a pair of...Ch. 4.2 - 17. Refer to the KP&L sample points and sample...Ch. 4.2 - Prob. 18E Ch. 4.2 - 19. Do you think global warming will have an...Ch. 4.2 - 20. Junior Achievement USA and the Allstate...Ch. 4.2 - 21. Data on U.S. work-related fatalities by cause...Ch. 4.3 - 22. Suppose that we have a sample space with five...Ch. 4.3 - Prob. 23E Ch. 4.3 - Prob. 24E Ch. 4.3 - 25. The Eco Pulse survey from the marketing...Ch. 4.3 - Prob. 26E Ch. 4.3 - Social Media Use. A marketing firm would like to...Ch. 4.3 - 28. A survey of magazine subscribers showed that...Ch. 4.3 - 29. High school seniors with strong academic...Ch. 4.4 - 30. Suppose that we have two events, A and B, with...Ch. 4.4 - 31. Assume that we have two events, A and B, that...Ch. 4.4 - Living with Family. Consider the following example...Ch. 4.4 - Students taking the Graduate Management...Ch. 4.4 - Prob. 34E Ch. 4.4 - 35. To better understand how husbands and wives...Ch. 4.4 - 36. Jamal Crawford of the National Basketball...Ch. 4.4 - 37. A joint survey by Parade magazine and Yahoo!...Ch. 4.4 - 38. The Institute for Higher Education Policy, a...Ch. 4.5 - 39. The prior probabilities for events A1 and A2...Ch. 4.5 - 40. The prior probabilities for events A1, A2, and...Ch. 4.5 - 41. A consulting firm submitted a bid for a large...Ch. 4.5 - Prob. 42E Ch. 4.5 - 43. In August 2012, tropical storm Isaac formed in...Ch. 4.5 - Prob. 44E Ch. 4.5 - 45. The percentage of adult users of the Internet...Ch. 4 - 46. A survey of adults aged 18 and older conducted...Ch. 4 - Prob. 47SE Ch. 4 - Below are the results of a survey of 1364...Ch. 4 - 49. A study of 31,000 hospital admissions in New...Ch. 4 - 50. A telephone survey to determine viewer...Ch. 4 - 51. The U.S. Census Bureau serves as the leading...Ch. 4 - 52. An MBA new-matriculants survey provided the...Ch. 4 - Prob. 53SE Ch. 4 - 54. In February 2012, the Pew Internet & American...Ch. 4 - 55. A large consumer goods company ran a...Ch. 4 - Prob. 56SE Ch. 4 - 57. A company studied the number of lost-time...Ch. 4 - Prob. 58SE Ch. 4 - 59. An oil company purchased an option on land in...Ch. 4 - 60. The five most common words appearing in spam...Ch. 4 - Rob’s Market (RM) is a regional food store chain...

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Solution Summary: The author calculates the probability of an individual purchasing a product, given that the individual recalls seeing the advertisement.

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