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A complex electronic system is built with a certain number of backup components in its subsystems. One subsystem has four identical components, each with a probability of .2 of failing in less than 1000 hours. The subsystem will operate if any two of the four components are operating. Assume that the components operate independently. Find the probability that
a exactly two of the four components last longer than 1000 hours.
b the subsystem operates longer than 1000 hours.
magic valley memorial hospital administrators have recently received an internal audit report that indicates that 15 of
Interpret the results. Is it possible that, for these populations of days, the average number of calls completed between plumber A and plumber B do not differ?
If a constant release of a gaseous low-level radioactive isotope from a medical facility is allowed, what would be the acceptable release rate in a year's period (in rems per hour).
If a filled container of juice is selected at random, what is the probability that is is a nonconforming container and what is the probability that is was filled in machine II?
Construct a 95 percent confidence interval estimate of the average IQ score of all students at the university. Construct a 95 percent lower confidence interval estimate.
In the construction of confidence intervals, if all other quantities are unchanged, an increase in the sample size will lead to a ____________ interval.
mark harris production manager of medical electronics inc. is preparing for the delivery of one of his companys new
Personal phone calls received by a new employee was 3,5, and 6. assume that samples of size 2 are randomly selected with replacement from this population of three values. Find the mean of the distribution.
A product sold by Home Depot, Inc., with an annual demand of 1000 units has Co = $25.50 and Ch = $8. The demand exhibits some variability such that the lead-time demand follows a normal probability distribution
Form a Markov chain with states the number of sites occupied. Modify the program FixedVector to compute the fixed vector. Use this to check your conjecture by simulation.
Using test data on 20 types of laundry detergent, an analyst fitted a regression to predict CostPerLoad (average cost per load in cents per load) using binary predictors.
Determine the p-value for this test. Is there sufficient evidence to justify the rejection of H0 at the "alpha" level of 0.01? Please explain your answer.
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