Statistics for Business and Economics (13th Edition)
13th Edition
ISBN: 9780134506593
Author: James T. McClave, P. George Benson, Terry Sincich
Publisher: PEARSON
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Textbook Question
Chapter 3.7, Problem 3.87ACB
Fish contaminated by a plant’s toxic discharge. Refer to the U.S. Army Corps of Engineers' study on the DDT contamination of fish in the Tennessee River (Alabama), Example 1.5 (p. 14). Part of the investigation focused on how far upstream the contaminated fish have migrated. (A fish is considered to be contaminated if its measured DDT concentration is greater than 5.0 parts per million.)
- a. Considering only the contaminated fish captured from the Tennessee River, the data reveal that 52% of the fish are found between 275 and 300 miles upstream, 39% are found 305 to 325 miles upstream, and 9% are found 330 to 350 miles upstream. Use these percentages to determine the probabilities, P (275− 300) , P (305 − 325), and P (330− 350).
- b. Given that a contaminated fish is found a certain distance upstream, the
probability that it is a channel catfish (CC) is determined from the data as P (CC|275− 300) = .775, P (CC|305− 325) = . 77, and P (CC|330− 350) = .86. If a contaminated channel catfish is captured from the Tennessee River, what is the probability that it was captured 275−300 miles upstream?
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liter) and roadway area in the watershed x (in percentage).
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4.4
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9.7
10.6
10.8
10.9
0.19
0.15
0.57
0.70
0.67
0.63
y
11.8
12.1
14.3
14.7
15.0
17.3
0.47
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0.60
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Channel Type
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1
41.4 43.4 50.0 41.2
2
38.7 48.3 51.1 38.3
3
32.6 33.7 34.8 22.5
4
26.3 30.9 33.3 23.8
5
44.9 47.2 48.5 37.1
a.
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b.
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Chapter 3 Solutions
Statistics for Business and Economics (13th Edition)
Ch. 3.1 - An experiment results in one of the following...Ch. 3.1 - The diagram below describes the sample space of a...Ch. 3.1 - The sample space for an experiment contains five...Ch. 3.1 - Compute each of the following: a. (94) b. (72) c....Ch. 3.1 - Compute the number of ways you can select n...Ch. 3.1 - Two fair dice are tossed, and the face on each die...Ch. 3.1 - Two marbles are drawn at random and without...Ch. 3.1 - Use the applet Simulating the Probability of...Ch. 3.1 - Use the applet Simulating the Probability of a...Ch. 3.1 - Cable TV subscriptions and "cord cutters." Refer...
Ch. 3.1 - Do social robots walk or roll? Refer to the...Ch. 3.1 - Colors of MMs candies. When they were first...Ch. 3.1 - Male nannies. In a survey conducted by the...Ch. 3.1 - Working on summer vacation. Is summer vacation a...Ch. 3.1 - Mobile access to social media. The Marketing...Ch. 3.1 - Performance-based logistics. Refer to the Journal...Ch. 3.1 - Who prepares your tax return? As part of a study...Ch. 3.1 - Consumer recycling behavior. Refer to the Journal...Ch. 3.1 - Museum management. Refer to the Museum Management...Ch. 3.1 - USDA chicken inspection. The U.S. Department of...Ch. 3.1 - Jamming attacks on wireless networks. Refer to the...Ch. 3.1 - Randomization in a study of TV commercials....Ch. 3.1 - Jai-alai bets. The Quinella bet at the paramutual...Ch. 3.1 - Investing in stocks. From a list of 15 preferred...Ch. 3.1 - Highest-rated car brands. Consumer Reports 2015...Ch. 3.1 - Volkswagen emissions scandal. Refer to the...Ch. 3.1 - Drug testing of firefighters. Hillsborough County...Ch. 3.1 - Odds of winning a race. Handicappers for greyhound...Ch. 3.1 - Lead bullets as forensic evidence. Chance (Summer...Ch. 3.1 - Making your vote count. Democratic and Republican...Ch. 3.4 - Suppose P (A) = A, P(B) = 7, and P (A B) = 3....Ch. 3.4 - A fair coin is tossed three times, and the events...Ch. 3.4 - A pair of fair dice is tossed. Define the...Ch. 3.4 - Consider the Venn diagram below, where P(E1) =...Ch. 3.4 - Consider the Venn diagram in the next column,...Ch. 3.4 - Prob. 3.35LMCh. 3.4 - Prob. 3.36LMCh. 3.4 - Use the applets Simulating the Probability of...Ch. 3.4 - Prob. 3.4AECh. 3.4 - Do social robots walk or roll? Refer to the...Ch. 3.4 - Firefighter glove sizing. Human Factors (December...Ch. 3.4 - Study of analysts' forecasts. The Journal of...Ch. 3.4 - Problems at major companies The Organization...Ch. 3.4 - Scanning errors at Walmart. 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At the 2012 Gulf...Ch. 3.6 - For two events, A and B, P (A) .4, P (B) .2, and...Ch. 3.6 - For two events, A and B, P (A) = .4, P (B) = .2,...Ch. 3.6 - An experiment results in one of three mutually...Ch. 3.6 - For two independent events, A and B, P (A) = .4...Ch. 3.6 - Two fair coins are tossed, and the following...Ch. 3.6 - Consider the experiment depicted by the Venn...Ch. 3.6 - Two fair dice are tossed, and the following events...Ch. 3.6 - A sample space contains six sample points and...Ch. 3.6 - Use the applet Simulating the Probability of...Ch. 3.6 - On-the-job arrogance and task performance. Human...Ch. 3.6 - World's largest public companies. Forbes (May 6,...Ch. 3.6 - Guilt in decision making. Refer to the Journal of...Ch. 3.6 - Blood diamonds. According to Global Research News...Ch. 3.6 - Do social robots walk or roll? Refer to the...Ch. 3.6 - Shopping with a smartphone. Each year, United...Ch. 3.6 - Identity theft victims. According to The National...Ch. 3.6 - Study of why EMS workers leave the job. Refer to...Ch. 3.6 - Working on summer vacation. Refer to the Harris...Ch. 3.6 - Stock market participation and IQ. Refer to The...Ch. 3.6 - Prob. 3.70ACICh. 3.6 - Ambulance response time. Geographical Analysis...Ch. 3.6 - Working mothers with children. The U S Census...Ch. 3.6 - Firefighters' use of gas detection devices. Two...Ch. 3.6 - Wine quality and soil. The Journal of Wine...Ch. 3.6 - Are you really being served red snapper? Red...Ch. 3.6 - Random shuffling of songs on Spotify. Spotify is a...Ch. 3.6 - Forensic evidence in a criminal court case. In our...Ch. 3.6 - Prob. 3.78ACACh. 3.6 - Prob. 3.79ACACh. 3.6 - Encryption systems with erroneous ciphertexts. In...Ch. 3.7 - Suppose the events B1 and B2 are mutually...Ch. 3.7 - Prob. 3.82LMCh. 3.7 - Prob. 3.83LMCh. 3.7 - Confidence of feedback information for improving...Ch. 3.7 - Fingerprint expertise. 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The...Ch. 3 - World Cup soccer match draws. Every 4 years the...Ch. 3 - Chance of an Avon sale. The probability that an...Ch. 3 - Drug testing in athletes. When Olympic athletes...Ch. 3 - Profile of a sustainable farmer. Sustainable...Ch. 3 - Evaluating the performance of quality inspectors....Ch. 3 - Using game simulation to teach a course. In...Ch. 3 - Patient medical instruction sheets. Physicians and...Ch. 3 - Detecting traces of TNT. University of Florida...Ch. 3 - The three-dice gambling problem. According to...Ch. 3 - Scrap rate of machine parts. A press produces...Ch. 3 - Chance of winning at craps. A version of the dice...Ch. 3 - Chance of winning blackjack. Blackjack, a favorite...Ch. 3 - Software defects in NASA spacecraft instrument...Ch. 3 - Lets Make a Deal. Marilyn vos Savant, who is...Ch. 3 - Flawed Pentium computer chip. In October 1994, a...Ch. 3 - Exit polls are conducted in selected locations as...Ch. 3 - Define events A and B as follows: A: {Purchase...Ch. 3 - Now define events A and B in this manner: A:...
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