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Assume that three industrial processes (A,B and C) are independent. If the probability of successfully working for 8 hours is 0.99 for process A, 0.95 for process B and 0.80 for process C, then
a.) What is the probability that all three work successfully for 8 hours?
b.) What is the probability that all three fail to work successfully in these 8 hours?
c.) What is the probability that one or more successfully works for 8 hours?
d.) What is the probability that one or more fails to work successfully for 8 hours?
Use the expected value approach to decide whether to market the new product. Because of the high dollar values involved, especially the possibility of a $100,000 loss.
X is normally distributed with a mean of 250 and a standard deviation of 40. What value of X does only the top 15% exceed?
Do you think that these types of statistics can ever be accurate? How could this statistic be biased? In what ways could scientists misinterpret the results of their studies and come up with an incorrect statistic? What are your thoughts?
How large sample size must be taken to be 95% confident.
a study by the national park service revealed that 50 of the vacationers going to the rocky mountain region visit
An Electric Co. Operates a fleet of trucks that provide electrical service to the construction industry. Monthly mean maintenance cost has been $75 per truck.
Recently, students in a marketing research class were interested in the driving behavior of students. Specifically, the marketing students were interested if exceeding the speed limit was related to gender.
Downs and Abwender (2002) evaluated soccer players and swimmers to determine whether the routine blows to the head experienced by soccer players produced long-term neurological deficits.
read the following problems and compute the number of possibilities.q1. how many different 5-shy-card poker hands
The following data was randomly drawn from a normal population. At an alpha level of .05, does the mean of the population differ significantly from -150. Use Excel.
A sample of 23 European countries found that the variance of life expectancy was 7.3 years. What is the 95% confidence interval for the variance of life expectancy in Europe.
Please help me with the attached pre-calculus questions. Use mathematical induction to prove that 6 is a factor of n (n + 1)(n + 2).
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