1. A certain company reduced its management staff from 18 managers to 12. The company claimed that the 6 managers were randomly selected for job termination. However, the 6 managers chosen are the 6 oldest managers among the 18 that were employed. What is the probability that when 6 oldest managers are randomly selected from
1.Suppose that in an assortment of 20 blackberries, there are 5 with defective switches. In a draw without replacement, if 3 blackberries are picked at random, what is the probability that all 3 have defective switches? 2.A tray of 20 tomatoes has a 12.5% probability of being too ripe. What is the probability that exactly 3
E-1. The market for on-line degrees and courses is becoming crowded and quality and responsiveness seem to play a role in attracting students to continue in a program. The Academic Dean of Ed Marshal Automotive University (EMAU) is interested in how EMAU is doing in the on-line area. He commissioned a study by a faculty-staff
What is a probability distribution and its purpose? Distinguish between discrete and continuous probability distributions. Give an example of each. What is randomness? Assume you have an Excel worksheet of the dimension, A1:E101. The first row contains data labels. How would you randomize the data file and to select a
19. "Fast Eddie" Flournoy manages the service equipment division of Delta Airline's Atlanta terminal. He keeps a service crew on call to repair tow tractors that break down. Tractors break down on an average of three per day. The repair crew could service an average of 8 tractors per day. "Fast Eddie", a real math whiz, estima
*18. DEF A/C Remodelers has contracted to reconfigure the interior of a large corporate A/C. The project manager has determined that there are 11 steps to the process. In consultation with the project foreman he has determined the sequence and precedent for the 11 events, labeled A - K, and has estimated the optimistic, expe
A manufacturer must decide whether to build a small or a large plant at a new location. Demand at the location can be either small or large, with probabilities estimated to be 0.4 and 0.6 respectively. If a small plant is built, and demand is large, the production manager may choose to maintain the current size or to expand. The
A business owner decides to use a binomial distribution to solve one of his problems. He knows there is a 60 percent probability that he will sell one of his Red Oak floors to any customer who comes into his shop and views the wood. Out of the next 7 people who come into his shop, what is the probability that 3 people will
1) suppose that you repeatedly toss a coin whoes probability of head is p. Let X denote the number of tosses needed to get the first head and Y denote the number of tosses needed to get the second toss. a) Find the joint pmf of X and Y. b) Find the conditional pmf of Y given X=x. c) Are X and Y independent? d) (Bonus) Find
Please help with the following probability problem. A statistical experiment involves flipping a coin that is much thicker than a regular coin of the same diameter. When flipped, the probability for the thick coin to come to rest on its edge is 4 percent; otherwise it is a "fair coin" in the sense that we can get heads or ta
Every 5 minutes a satellite sends an almost instantaneous signal burst to a ground station to communicate that all systems are working properly. The satellite will not transmit the burst if there is an error somewhere. The transmitted signal strength is 4 units. The signal received at the ground station is a combination of the t
Assume the probability of a tire blowout is 0.178% per 50,000 miles of use and that a person travels 15,000 miles per year in a car. Assume that the probability of loss of control is 60% if the blowout occurs on the front tires and 20% for the rear tires. If control is lost, the probability is 50% of veering to the right and 50%
Ricon, Inc. uses an assembly line to produce its office copiers. The final step in the assembly process is quality control inspection. Copiers arrive at the quality inspection area exactly every 90 seconds. The time it takes to perform a quality control inspection follows an exponential distribution, with a mean of 72 seconds
Please see attached for fully formatted questions. ---------------------------------------------------------- 1. a. The expected number of customer that will arrive in a five minutes period is b. The probability that exactly 0,1,2 and 3 customer will arrive during a five minutes period is c. The probability of delays will
It has been reported that the average US office worker receives 14 fax messages per day. For purposes of this exercise, we will assume that the daily number of fax messages is normally distributed with a standard deviation of 5.0 messages. For an office in which 10 workers are employed and considering these person as a simple
For a random variable that is normally distributed, with u = 200 and o = 20, determine the probability that a simple random sample of 4 items will have a mean that is: a. greater than 210 b. between 190 and 230 c. less than 225
The diameter of ping-pong balls manufactures at a large factory is expected to be approximately normally distributed with a mean of 1.30 inches and a standard deviation of 0.04 inch. What is the probability that a randomly selected Ping-pong ball will have a diameter between 1.31 and 1.33 inches? a. 0.0987 b. 0.1747 c. 0.2
What type of probability distribution will most likely be used to analyze the number of chocolate chip parts per cookie in the following problem? The quality control manager of Marilyn's Cookies is inspecting a batch of chocolate chip cookies. When the production process is in control, the average number of chocolate chip pa
A continuous random variable, x, is normally distributed with a mean of $1000 and a standard deviation of $100. Convert each of the following x values into its corresponding z-score. a. x = $1000 b. x = $750 c. x = $1100 d. x = $950 e. x = $1225 2.Using the standard normal table, find the following probabilities
The following data represent x = the total number of business and y = the number of business failures in mountain states over a 1-year period. x = Number of y = Number of State businesses business failures Arizona 146.67
A regional manager visits local fast-food franchises and evaluates the speed of the service. If the manager receives her meal within 45 seconds, the server is given a free movie-admission coupon. If it takes more than 45 seconds, the server receives nothing. Throughout the company's franchises, the probability is 0.60 that a
Problem #19 Customers arrive at the Blinkies Donut shop between 6:30am and 8:30am according to a Poisson process with a mean rate of one every minute. Seventy percent of the arriving customers purchase one or two donuts, while 30% purchase the Blinkies Dozen pack. For customers purchasing one or two donuts, the service time
Need help with the attached excel spreadsheet. Sheet 1 is problem, Sheet 2 is template I need to use. Pharmgen Corporation has developed a new medication for the treatment of high blood pressure. Tests on laboratory animals have been promising, and the firm is ready to embark on human trials in order to gain approval from t
Please see the attached file for the fully formatted problems. 1. A timber company in the southwest is evaluating its inventory policy regarding timber needed for its saw mill. Annual demand= 38,000, Carrying cost = $6.10, ordering cost = $25.00, supply rate = 200, usage rate = 75. a) What is EOQ b) What is total annual st
1. Assume that company A makes 80% of all electrocardiograph machines, company B make 15% of them, and the company C makes the other 5%. The electrocardiographs machines made by company A have a 4% rate of defects, the company B machines have a 5% rate of defects, while the company C machines have a 8% rate of defects. a) If a
I would like some help with the following problems. Can I please get the actual manual work for the problems so I can follow the formula and follow the steps with other word problems. Thanks. 1. A normal population has a mean of 20.0 and a standard deviation of 4.0. a. compute the z value associated with 25.0. b. what prop
The Dept. of Labor has reported that 30% of the 2.1 million mathematical and computer scientists in the United States are women. If 3 individuals are randomly selected from this occupational group, and x = the number of females, determine P(x = 0), P(x = 1), P(x - 2), and P(x = 3).
There is a probability that the river will flood next year. Riverside's profits for the coming year depend on whether Laura buys the flood insurance and whether the river floods. The profits (which take into consideration the $10,000 premium for the flood insurance) for the four possible combinations of Laura's choice and river
1. The number of homicides in Vermont from 1992 through 2001 is given in the following table. Find the mean, median, and mode of the data. 2. Find the standard deviation for the data shown in the table of problem #6.3. Use your answer from problems #6 and #7 to answer the following questions: a. What percent of the data i
Compose an email to discuss the following: Begin your email to AIU by first providing an overview of the database, i.e. a story. Be sure to include information about how you would use the concept of probabilities to apply to profiles for hiring more satisfied individuals. (Job Satisfaction is an attitude about one's j