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Major motor failures occur among the buses of a large bus company at the rate of2 a day. Assuming that each motor failure requires the services of 1 mechanic for a whole day, how many mechanics should the bus company employ to insure that the probability is at least 0.95 that a mechanic will be available to repair each motor as it fails? (More precisely, find the smallest integer K such that the probability is greater than or equal to 0.95 that K or fewer motor failures will occur in a day.)
if the probability is 0.1 that a person will make a mistake on his or her state income tax return find the probability
If the standard deviation of the process is unknown, another approach is to use the sample range as a measure of process variability. Calculate the control limits for the above process using the sample range.
it is estimated that 3 of the athletes competing in a large tournament are users of an illegal drug to enhance
USA snapshot presented a bar graph depicting business travelers' impression of wait times in airport security lines over the past 12 months. Statistics were derived from Travel Industry Association of American Business Traveler Survey of 2034 resp..
Normal population having a standard deviation of 0.04, what is the probability that the mean of a random sample of size 25 will be "off" by at most 0.02?
Read Chapter 1: The Nature of Mixed Methods Research from John Creswell and Vicki Plano-Clark's book, Designing and Conducting Mixed Methods Research, which was published by Sage in 2011.
a biologist wants to test the null hypothesis that the mean mean wingspan of a certain kind of insect is 12.3mm against
in each exercises hypothesis tests are proposed. for each hypothesis test aidentify the variablebidentify the two
Assign probabilities to the sample points and then find the probability that the first envelope purchased contains less than $100.
Electricity is commonly traded at the California-Oregon border (COB) and Palo Verde (PV) in Arizona. Assume you take a sample of 100 daily electricity market closing prices (in $/megawatthour) from both COB and PV.
yashchin 1995 discusses a process for the chemical etching of silicon wafers used in integrated circuits. this process
the assets in billions of dollars of the four wealthiest people in a particular country are 37332116. assume the
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