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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Chapter 4.4, Problem 4.79ACI
Flaws in plastic-coated wire. The British Columbia Institute of Technology provides on its Web site (www.math.bcit.ca) practical applications of statistics at mechanical engineering firms. The following is a Poisson application. A roll of plastic-coated wire has an average of .8 flaw per 4-meter length of wire. Suppose a quality-control engineer will sample a 4-meter length of wire from a roll of wire 220 meters in length. If no flaws are found in the sample, the engineer will accept the entire roll of wire. What is the
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Chapter 4 Solutions
Statistics for Business and Economics (13th Edition)
Ch. 4.1 - Types of random variables. Which of the following...Ch. 4.1 - Types of finance random variables. Security...Ch. 4.1 - NHTSA crash tests. Refer to the National Highway...Ch. 4.1 - Customers in line at a Subway shop. The number of...Ch. 4.1 - Executive pay. Refer to Glassdoor Economic...Ch. 4.1 - Banking. Give an example of a discrete random...Ch. 4.1 - Economics. Give an example of a continuous random...Ch. 4.1 - Hotel management. Give an example of a discrete...Ch. 4.1 - Retailing. Give two examples of discrete random...Ch. 4.1 - Stock market. Give an example of a continuous...
Ch. 4.2 - A discrete random variable x can assume five...Ch. 4.2 - The random variable x has the following discrete...Ch. 4.2 - A discrete random variable x can assume five...Ch. 4.2 - Explain why each of the following is or is not a...Ch. 4.2 - A die is tossed. Let x be the number of spots...Ch. 4.2 - Toss three fair coins and let x equal the number...Ch. 4.2 - Use the apple! Random Numbers to generate a list...Ch. 4.2 - Run the applet Simulating the Probability of a...Ch. 4.2 - Consider the probability distribution shown here:...Ch. 4.2 - Consider the probability distribution for the...Ch. 4.2 - Consider the probability distributions shown here:...Ch. 4.2 - Apps not working on smartphone. In a Pew Research...Ch. 4.2 - NHTSA crash tests. Refer to the NHTSA crash tests...Ch. 4.2 - Ages of dot-com employees. The age (in years)...Ch. 4.2 - Variable speed limit control for freeways. A...Ch. 4.2 - Choosing portable grill displays. Refer to the...Ch. 4.2 - Do social robots walk or roll? Refer to the...Ch. 4.2 - Reliability of a manufacturing network. A team of...Ch. 4.2 - Prob. 4.27ACICh. 4.2 - Prob. 4.28ACICh. 4.2 - Contaminated gun cartridges. A weapons...Ch. 4.2 - The last name effect in purchasing. The Journal of...Ch. 4.2 - Mail rooms contaminated with anthrax. During...Ch. 4.2 - Investment risk analysis. The risk of a portfolio...Ch. 4.2 - Prob. 4.33ACICh. 4.2 - Stock market participation and IQ. Refer to The...Ch. 4.2 - Expected loss due to flood damage. The National...Ch. 4.2 - Expected Lotto winnings. Most states offer weekly...Ch. 4.2 - Prob. 4.37ACACh. 4.2 - Prob. 4.38ACACh. 4.2 - Prob. 4.39ACACh. 4.3 - Compute the following: a. 6!2!(62)! b. (52) c....Ch. 4.3 - Consider the following probability distribution:...Ch. 4.3 - Suppose x is a binomial random variable with n = 3...Ch. 4.3 - If x is a binomial random variable, compute p (x)...Ch. 4.3 - If x is a binomial random variable, use Table I in...Ch. 4.3 - If x is a binomial random variable, calculate , 2,...Ch. 4.3 - The binomial probability distribution is a family...Ch. 4.3 - Use the applets Simulating the Probability of a...Ch. 4.3 - Open the applet Sample from a Population. On the...Ch. 4.3 - Use the applet Simulating the Stock Market to...Ch. 4.3 - Working on summer vacation. Recall (Exercise 3.13,...Ch. 4.3 - Privacy and information sharing. Some grocery...Ch. 4.3 - Hotel guest satisfaction. Each year, J. D. Power...Ch. 4.3 - Physicians opinions on a career in medicine. The...Ch. 4.3 - Playing sports related to job pay. Does...Ch. 4.3 - Immediate feedback to incorrect exam answers....Ch. 4.3 - Fingerprint expertise. Refer to the Psychological...Ch. 4.3 - Making your vote count. Refer to the Chance (Fall...Ch. 4.3 - Bridge inspection ratings. According to the...Ch. 4.3 - Tax returns audited by the IRS. According to the...Ch. 4.3 - FDA report on pesticides in food. Periodically,...Ch. 4.3 - Prob. 4.58ACACh. 4.3 - USGA golf ball specifications. According to the...Ch. 4.3 - Network forensic analysis. A network forensic...Ch. 4.4 - Consider the probability distribution shown here:...Ch. 4.4 - Assume that x is a random variable having a...Ch. 4.4 - Prob. 4.63LMCh. 4.4 - Prob. 4.64LMCh. 4.4 - Prob. 4.65LMCh. 4.4 - Suppose x is a random variable for which a Poisson...Ch. 4.4 - Prob. 4.67LMCh. 4.4 - Prob. 4.68LMCh. 4.4 - Prob. 4.69ACBCh. 4.4 - FDIC bank failures. The Federal Deposit Insurance...Ch. 4.4 - Airline fatalities. Over the past 5 years, U.S....Ch. 4.4 - Male nannies. According to the International Nanny...Ch. 4.4 - Contaminated gun cartridges. Refer to the...Ch. 4.4 - Prob. 4.74ACBCh. 4.4 - Prob. 4.75ACICh. 4.4 - Traffic fatalities and sporting events. The...Ch. 4.4 - Prob. 4.77ACICh. 4.4 - Guilt in decision making. The Journal of...Ch. 4.4 - Flaws in plastic-coated wire. The British Columbia...Ch. 4.4 - Making high-stakes insurance decisions. The...Ch. 4.4 - Prob. 4.81ACACh. 4.4 - Waiting for a car wash. An automatic car wash...Ch. 4.4 - Elevator passenger arrivals. A study of the...Ch. 4.6 - Find the area under the standard normal...Ch. 4.6 - Find the following probabilities for the standard...Ch. 4.6 - Find the following probabilities for the standard...Ch. 4.6 - Find each of the following probabilities for the...Ch. 4.6 - Find a value of the standard normal random...Ch. 4.6 - Find a value of the standard normal random...Ch. 4.6 - Give the z-score for a measurement from a normal...Ch. 4.6 - Suppose the random variable x is best described by...Ch. 4.6 - The random variable x has a normal distribution...Ch. 4.6 - Suppose x is a normally distributed random...Ch. 4.6 - Suppose x is a normally distributed random...Ch. 4.6 - Suppose x is a binomial random variable with p =...Ch. 4.6 - Assume that x is a binomial random variable with n...Ch. 4.6 - Open the applet Sample from a Population. On the...Ch. 4.6 - Variable life insurance return rates. With a...Ch. 4.6 - Hotels use of ecolabels. Refer to the Journal of...Ch. 4.6 - Tomato as a taste modifier. Miraculina protein...Ch. 4.6 - Corporate sustainability of CPA firms. Refer to...Ch. 4.6 - Shopping vehicle and judgment. Refer to the...Ch. 4.6 - Buy-side vs. sell-side analysts earnings...Ch. 4.6 - Blood diamonds. According to Global Research News...Ch. 4.6 - Prob. 4.104ACBCh. 4.6 - Executive networking and firm performance. Refer...Ch. 4.6 - Voltage sags and swells. Refer to the Electrical...Ch. 4.6 - Prob. 4.107ACICh. 4.6 - Safety of underground tunnels. Research published...Ch. 4.6 - Prob. 4.109ACICh. 4.6 - Manufacturing hourly pay rate. Government data...Ch. 4.6 - Personnel dexterity tests. Personnel tests are...Ch. 4.6 - Californias electoral college votes. During a...Ch. 4.6 - Prob. 4.113ACICh. 4.6 - Industrial filling process. The characteristics of...Ch. 4.6 - Prob. 4.115ACACh. 4.6 - Box plots and the standard normal distribution....Ch. 4.7 - If a population data set is normally distributed,...Ch. 4.7 - Prob. 4.118LMCh. 4.7 - Prob. 4.119LMCh. 4.7 - Examine the sample data in the accompanying table....Ch. 4.7 - Prob. 4.121ACBCh. 4.7 - Prob. 4.122ACBCh. 4.7 - Drug content assessment. Scientists at...Ch. 4.7 - Prob. 4.124ACBCh. 4.7 - Prob. 4.125ACBCh. 4.7 - Wear-out of used display panels. Wear-out failure...Ch. 4.7 - Rankings of research universities. Refer to the...Ch. 4.7 - Sanitation inspection of cruise ships. Refer to...Ch. 4.7 - Ranking driving performance of professional...Ch. 4.7 - Permeability of sandstone during weathering. Refer...Ch. 4.7 - Prob. 4.131ACACh. 4.8 - Suppose x is a random variable best described by a...Ch. 4.8 - Suppose x is a random variable best described by a...Ch. 4.8 - Refer to Exercise 4.133. Find the following...Ch. 4.8 - Suppose x has an exponential distribution with =...Ch. 4.8 - Prob. 4.136LMCh. 4.8 - Prob. 4.137LMCh. 4.8 - Prob. 4.138LMCh. 4.8 - Prob. 4.7AECh. 4.8 - Prob. 4.8AECh. 4.8 - Load on timber beams. Timber beams are widely used...Ch. 4.8 - Preventative maintenance tests. The optimal...Ch. 4.8 - Maintaining pipe wall temperature. Maintaining a...Ch. 4.8 - Detecting anthrax. Researchers at the University...Ch. 4.8 - Lead in metal shredder residue. On the basis of...Ch. 4.8 - Critical-part failures in NASCAR vehicles. In...Ch. 4.8 - Social network densities. Social networking sites...Ch. 4.8 - Boeing 787 Dreamliner. An assessment of the new...Ch. 4.8 - Soft-drink dispenser. The manager of a local...Ch. 4.8 - Prob. 4.148ACICh. 4.8 - Prob. 4.149ACICh. 4.8 - Cycle availability of a system. In the jargon of...Ch. 4.8 - Prob. 4.151ACICh. 4.8 - Reliability of CO-ROMs. In Reliability Ques (March...Ch. 4.8 - Prob. 4.153ACACh. 4.8 - Reliability of a robotic device. The reliability...Ch. 4.8 - Prob. 4.155ACACh. 4 - For each of the following examples, decide whether...Ch. 4 - Given that x is a binomial random variable,...Ch. 4 - Consider the discrete probability distribution...Ch. 4 - Suppose x is a binomial random variable with n =...Ch. 4 - Suppose x is a Poisson random variable. Compute p...Ch. 4 - Identify the type of random variablebinomial,...Ch. 4 - Prob. 4.162LMCh. 4 - Which of the following describe discrete random...Ch. 4 - Assume that x is a random variable best described...Ch. 4 - Find the following probabilities for the standard...Ch. 4 - Find a z-score, call it z0, such that a. P (z z0)...Ch. 4 - Identify the type of continuous random...Ch. 4 - Assume that x has an exponential distribution with...Ch. 4 - The random variable x has a normal distribution...Ch. 4 - Assume that x is a binomial random variable with n...Ch. 4 - The random variable x has a normal distribution...Ch. 4 - Analysis of bottled water. Is the bottled water...Ch. 4 - Downloading apps to your cell phone. According to...Ch. 4 - LASIK surgery complications. According to studies,...Ch. 4 - Requests to a Web server. According to Brighton...Ch. 4 - NASA and rare planet transits. A planet transit is...Ch. 4 - Hospital patient interarrival times. The length of...Ch. 4 - Dutch elm disease. A nursery advertises that it...Ch. 4 - Tracking missiles with satellite imagery. The...Ch. 4 - The business of casino gaming. Casino gaming...Ch. 4 - Machine repair times. An article in IEEE...Ch. 4 - Public transit deaths. Millions of suburban...Ch. 4 - On-site treatment of hazardous waste. The Resource...Ch. 4 - When to replace a maintenance system. An article...Ch. 4 - Software file updates. Software configuration...Ch. 4 - NHTSA crash safety tests. Refer to Exercise 4.21...Ch. 4 - Errors in measuring truck weights. To help highway...Ch. 4 - Detecting a computer virus attack. Chance (Winter...Ch. 4 - Whistle-blowing among federal employees....Ch. 4 - Ambulance response time. Ambulance response time...Ch. 4 - Optimal goal target in soccer. When attempting to...Ch. 4 - Marine losses for an oil company. The frequency...Ch. 4 - Reliability of a flow network. The journal...Ch. 4 - Doctors and ethics. Refer to the Journal of...Ch. 4 - Prob. 4.195ACICh. 4 - Testing for spoiled wine. Suppose that you are...Ch. 4 - Estimating demand for white bread. A bakery has...Ch. 4 - Checkout lanes at a supermarket. A team of...Ch. 4 - Rating employee performance. Almost all companies...Ch. 4 - Ship-to-shore transfer times. Lack of port...Ch. 4 - Prob. 4.201ACACh. 4 - Establishing tolerance limits. The tolerance...Ch. 4 - The showcase showdown. On the popular television...Ch. 4 - Reliability of a one-shot device. A one-shot...Ch. 4 - Super weapons development. The U.S. Army is...Ch. 4 - Space shuttle disaster. On January 28, 1986, the...Ch. 4 - Warehouse clubs are retailers that offer lower...Ch. 4 - Prob. 4.1.2ACh. 4 - Prob. 4.1.3ACh. 4 - Prob. 4.1.4ACh. 4 - Prob. 4.1.5ACh. 4 - Prob. 4.1.6ACh. 4 - Prob. 4.1.7ACh. 4 - Warehouse clubs are retailers that offer lower...
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