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Conduct a test of hypothesis to determine whether the mean payroll of the teams was different from 80 million. .05 is the significance level. The salary for 2010 was 3,2978,28.00. How do I calculate
You are a researcher for a professional research firm. Your firm has won a contract to do a study for an air travel industry publication. The editors of the publication would like to know their read
Suppose you roll a die three times. What is the probability of a getting total of two 5s from all three rolls of dice?
An article suggests that a Poisson process can be used to represent the occurrence of structural loads over time. Suppose the mean time between occurrences of loads is 0.5 year.
An airport limousine can accommodate up to four passengers on any one trip. The company will accept a maximum of six reservations for a trip, and a passenger must have a reservation.
What is the probability that the number among the 25 who received a special accommodation is within 2 standard deviations of the number you would expect to be accommodated? You may need to use the a
Suppose the service time, in minutes, at a bank has the Exponential distribution with lambda = 1/2. Use the central limit theorem to estimate the probability that the average service time of the fir
A foreman for an injection-molding firm admits that on 11% of his shifts, he forgets to shut off the injection machine on his line. This causes the machine to overheat, increasing the probability th
A project has the following cash flows. What is the internal rate of return? Year 0 1 2 3 Cash flow -$121,000 68,150 $42,200 $39,100 14.39% 13.47% 14.82% 12.71% 13.85%
A piggy bank contains one penny, one nickel, one dime, and one quarter. It is shaken until two coins fall out at random. What is the probability that at least $0.30 fall out?
An experimenter has prepared a drug dosge level that she claims will induce sleep for 80% of the people suffering from insomnia. After examining the dosage, we feel that her claim regarding the effe
Can this company be accused of paying substandard wages? Use alpha = 0.01 level test. Calculate the p-value. Does it suggest the same as your HT?
Three sides of a die are painted red, 2 sides yellow, and 1 side blue. What is the probability that when this die is thrown, the face that comes up is not red?
A study of residents of a region showed 20% were smokers. The probability of death due to lung cancer, given that a person smoked, was ten times the probability of death due to lung cancer, given th
In one season of 30 basketball games, what would you expect is the longest streak of consecutive shots made for a 40% shooter who shoots on average 20 shots per game? (Assume that the "Hot Hand" doe
Peggy has drawn two cards from a standard dock and obtained an Ace of clubs and a King of clubs. If Peggy draws three more cards, in how many selection can Peggy get
If there are 50 nurses in a nursing home, how would you randomly select 10 of them to participate in your study? Please be descriptive in your answer
Raw scores on behavioral tests are often transformed for easier comparison. A test of reading ability has mean 69 and standard deviation 8 when given to third graders. Sixth graders have mean score
For which of the following variables would cumulative percentages be readily interpretable? Number of adults in a household
Derive De Moivre's result log(Q/M)=-(2t^2)/n or equivalently log(M/Q)=(2t^2)/n.(Hint: Divide the arguments of the first two logarithm terms in the expression in the text by m. Then simplify and repl