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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.
Assume that pM is the true underlying proportion of men who favor the issue and that pW is the true underlying proportion of women who favor of the issue. If it actually is true that pW = pM = p, find the MLE of the common proportion p.
Two popular drugs used for the treatment of depression are Resithan and Exemor. A random sample of 588 depressed individuals is selected and treated with Resithan, and 201 find relief from their depression.
Explain in your own words why it is important in some situations to consider future deci sions as well as the immediate decision at hand. Can you give an example from your own experience of an occasion in which you had to make a decision while exp..
The mean number of cups was 5 with a standard deviation of 1.5 cups. The distribution was normal. What proportion of students drank 7 or more cups of coffee per day?
The quality-control department took a random sample of 50 cans and found that the arithmetic mean weight was 16.05 ounces? Determine the p-value.
According to a recent poll published in USA TODAY, roughly 54% of U.S. men and 33% of U.S. women believe in extraterrestial aliens. Of U.S. adults, roughly 48% are men and 52% are women.
What is the arithmetic mean number of appointments she made per hour? What is the median number of appointments per hour? Write a brief report summarizing the findings.
Develop a linear regression model for these data and forecast the occupancy rate for next year if the Blue Sox win 88 games.
in october 2000 the u.s. department of commerce reported the results of a large scale survey on high school
Construct the probability distribution for the value of a 2-card hand dealt from a standard deck of 52 cards (all face cards have a value of 10 and an ace has a value of 11).
There are ten black, ten white, and ten blue balls in an urn. Ten of these are chosen at random without replacement. Find the probability that the first blue ball is drawn on the sixth draw.
suppose you have a coin that lands on heads with probability p 0 lt p lt 1. you dont know the value of p however. so
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