Find probability that average daily downtime for a period
The downtime per day for a certain computing facility averages 4.0 hours, with a standard deviation of 0.8 hours. Find the probability that the average daily downtime for a period of 30 days is between 1 and 5 hours.
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Suppose that a highway patrol person wants to estimate the proportion of all drivers speed, and that she wants to be able to assert with probability of at least 0.95 that the error of her estimate will not exceed 0.07. How large a sample, n, will
The RideEm Bicycles factory can produce 120 bicycles in a day at a total cost of $10,800 and it can produce 140 bicycles in a day at a total cost of $11,700. What are the company's daily fixed costs?
Information systems are capable of storing and compiling a large amount of data, many people worry that, their private data will end up in the wrong hands. At one extreme, there are criminals who use information systems to steal the identity of other
since 1981, scientists have discovered an abnormally high concentration of the element Iridium (Ir) precisely at the level of the Creteceous-Tertiary (k-t) boundary in many places around the world. What is thought to be the origin of the Ir de
In nature, poinsettias bloom in early march. Research has shown that the following process is triggered three months before blooming occurs. In order to make poinsettias bloom in December, florists change the length of the light-dark cycle in Septemb
a sample of the personal files of eight male employees revealed that during a six month period they lost the following number of days due to illness 2, 0, 6, 3, 10, 4, 1, 2 calculate the standard deviation.
Discuss in scholarly detail how construction is improving efforts with their supply chain through the evolution of software, including software integration, which supports these supply chain activities. The answer need to be 200 words. Please include
A manufacturer produces a batch of memory chips (RAM) and measures the mean-time-between-failures (MTBF). The manufacturer then changes a manufacturing process and produces another batch and again measures the MTBF. Did the change to the process i
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