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An airline is deciding how many reservations to accept for a new flight from Indianapolis to Chicago. The plane has a capacity of 200 seats. Because only 90 percent of passengers typically show up for this flight, they need to determine how many tickets to sell. The plane has 200 seats available. An empty seat costs the airline $200 per seat. However, if more than 200 passengers show up, those passengers will have to be rebooked on other flights. The cost of rebooking is about $300 per passenger. How many tickets should the airline sell for this flight to minimize their costs?
The length of time (in months after maintenance) until failure of a bank’s surveillance television equipment has a Weibull distribution with α = 2 and β =60 months. If the bank wants the probability of a breakdown before the next scheduled maintenanc..
The length of time between breakdowns of an essential piece of equipment is an important factor in deciding on the amount of auxiliary equipment needed to assure continuous service. A machine room foreman believes the time between breakdowns of a par..
Describe the error in the conclusion
The time married men with children spend on child care averages 6.4 hours per week (Time, March 12, 2012). You belong to a professional group on family practices that would like to do its own study to determine if the time married men in your area sp..
Respond to your peers or the professor and tell the person whether his answer is correct or incorrect and explain why. Indicate the name of the topic and the name of the slice on the Subject line so it is easier for others to follow. Pleas..
Describe the error in the conclusion. Given: There is a linear correlation between the number of cigarettes smoked and the pulse rate. As the number of cigarettes increases the pulse rate increases. Conclusion: Cigarettes cause the pulse rate to incr..
Archie is taking a course in probability theory. Discussion sessions with the class TA (teaching assistant) conflict with Archie's trips to the beach. Archie has to decide between attending TA sessions, which might help him do better in the probabili..
3. The athletic department of the University of Colorado conducted a research to see how many students attended a home football game last season. The University has a population of 25,450, and the study showed that 870 of 1100 students sampled attend..
A group of researchers runs a study in which they look at the relationship between music preferences and reading preferences. What statistical test should the researchers use on their data?
Reflection to date
Let X~N(2,6) and Y~N(-3,2) and Z~N(0,1). All three random variables are independent of each other. Do the following. a. What is the distribution of W=X+Y+Z? What are E(W) and Var(W)? b. What is the distribution of Q=2Y?
This variable represents the number of machine breakdowns during a day, based on this simulation run, what is the average number of breakdowns per day?
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