Question: As society becomes dependent on computers, data must be communicated via public communication networks such as satellite, microwave systems, and telephones. When a message is

As society becomes dependent on computers, data must be communicated via public communication networks such as satellite, microwave systems, and telephones. When a message is received, it must be authenticated. This is done by using a secret enciphering key. Even though the key is secret, there is always the possibility that it will fall into the wrong hands, thus allowing an unauthentic message to appear to be authentic.

Assume that 95% of all messages received are authentic. Furthermore, assume that only .1% of all unauthentic messages are sent using the correct key and that all authentic messages are sent using the correct key. Find the probability that a message is authentic given that the correct key is used.

Step by Step Solution

★★★★★

3.40 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

To solve this problem you can use Bayes theorem This theorem provides a way to calculate the probabi... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Business Communication Questions!

Owen and Sonja Cornell are married. They are the parents of two children: Kirsten (born on July 1, 2000) and Ingrid (born on May 17, 2009). Ingrid does not have any income. Kirsten (SIN 805 232 329)...

Even though most Americans who become unemployed are only unemployed for a short period of time, when you look at who is unemployed at a given moment in time, youll find that most of the unemployed...

Microwave spectroscopy is used to probe transitions between rotational energy levels in molecules. (a) A typical wavelength for microwaves is 10-2 m, compared with 10-5 m for infrared radiation. Is...

A satellite beams microwave radiation with a power of 10 kW toward the Earths surface. 550 km away. When the beam strikes Earth, its circular diameter is about 1500 m. Find the rms electric field...

Chapter Five: Understanding Women and Work I Equality is difficult, but superiority is painful. erere proverb Managing Workplace Diversity Chapter Five: Understanding Women and Work 1 Chapter Five...

4) Parktown Realty Inc developed an upscale condominium complex. On October 1, Miranda Wine signed an offer to purchase one of the units. Part of that document said, "This offer is irrevocable by the...

Media Planning for Advertising Campaigns Media selection is critical to advertising success. right audience through the correct media. There are several other reasons why the media are an essential...

So you want to be and Interpreter? An Introduction to Sign Language Interpreting. Class Participation/Canvas (Collaborative Discussions) What were the key points gleaned from the reading? Describe...

After reading the attached Article answer the below question with assignment (5 paragraphs) Which sections of the attached report could be the most useful for understanding the company's strategic...

National Business Institute of Australia 20 Clark Rd. Ivanhoe Victoria 3079 www.nbi.com.au 03 9499 7872 FNSORG601A Negotiate to achieve goals and manage disputes Student Workbook melbourne . sydney ....

Please help me to answer the question: why is IFRS an appropriate direction for accounting practice to ensure consistency and comparability of accounting practice across the world? Use the attach...

In Figure uniform beams A and B are attached to a wall with hinges and loosely bolted together (there is no torque of one on the other). Beam A has length LA = 2.40 m and mass 54.0 kg; beam B has...

In an advertising study done for Milestone magazine, a random sample of Milestone subscribers was selected. Each subscriber in the sample was asked to recall advertisements in this months edition of...

For your Host evaluation, answer 2 question with real speech example 1 . How would you greet a guest at the door? Be sure to follow the host steps of service. Make sure you include your standard...

The air temperature above coastal areas is profoundly influenced by the large specific heat of water. One reason is that the energy released when 1 m3 of water cools by 1C will raise the temperature...

The active element of a certain laser is made of a glass rod 30.0 cm long by 1.50 cm in diameter. If the temperature of the rod increases by 65.0C, what is the increase in (a) Its length, (b) Its...

The Acela is the Porsche of American trains. Shown in Figure P2.59a, the electric train whose name is pronounced ah-SELL-ah is in service on the Washington-New York- Boston run. With two power cars...

The acceleration of a marble in a certain fluid is proportional to the speed of the marble squared, and is given (in SI units) by a = -3.00v 2 for v > 0. If the marble enters this fluid with a speed...

The 5.5-Mg humpback whale is stuck on the there due to changes in the tide. In an effort to rescue a whale, 12-Mg tugboat is used to pull it fee using an inextensible rope tied to its tail. To...

Why do many city governments engage in city planning? answer in one very short and simple sentence

MNGT 4781: Strategic Management Form 10-K: Annual Report Pursuant to Section 13 or 15d of The Securities Exchange Act of 1934: QUALCOMM Incorporated Assignment 2 By U.S. Securities and Exchange...

CASE 11 Sirius XM Satellite Radio Inc. in 2014: On Track to Succeed connect after a Near-Death Experience? Arthur A. Thompson The University of Alabama In February 2009, the outlook for Sirius XM...

I'm willing to take this before the 19th of may. PROFESSIONAL ISSUES When a company looks too good to be true, it usually is. ; i - I The Rise and Fall of Enron BY C. WILLIAM THOMAS f you''re like...

Questions: 1) Assume Bardin decides to accept the Series D round of financing. Evaluate the implications this would have on the following: a. If Waze takes the money, what does it mean? b. How would...

Assistive technology enables dreams. Mathew Lee (personal communication) Assistive technology (AT) provides powerful tools used to diminish disability, enable activities of daily living (ADLs), and...