Time series techniques and causal techniques
What are the basic assumptions made when using time series techniques and causal techniques?
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Suppose that an airplane engine will fall, when in flight, with probability 1-p independently from engine to engine; suppose that the airplane will make a successful flight if at least 50 percent of its engines remain operative. For what values of
D.O. Better, operations manager for Luxury Products, Inc., is forecasting the coming month's (October's) demand for his best-selling product based on the following dataWhat is the forecast for October (month 10)?
Assume GRE scores form a normal distribution with a population mean of 750 and a population standard deviation of 150. If you take a random sample of n = 8 students, what is the probability that the sample mean will be more than 760?
The mean of the population was computed to be 126.9 grams and the standard deviation was 1.20 grams. Which food results in a more uniform weight?
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A random sample of 100 patients taken at a community hospital shows the mean time for a patient to see a physician is 28 minutes with a standard deviation of 8 minutes.
A sample of 54 day-shift workers showed that the mean number of units produced was 345. A sample of 60 night-shift workers showed that the mean number of units produced was 351. At the .05 significance level, is the number of units produced on the
In a survey of 1002 people, 710 said that they voted in a recent presidential election. Voting records show that 61% of eligible voters actually did vote. Given that 61% of eligible voters actually did vote, find the probability that among 1002 ra
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