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The specifications on an electronic component in a target acquisition system are that its life must be between 5,000 - 10,000 h. The life is normally distributed with mean 7500 h. The manufacturer realizes a price of $10 per unit produced; however defective units must be replaced at a cost of $5 to the manufacturer.
Two different manufacturing processes can be used, both of which have the same mean life. However the standard deviation of life for process 1 is 1000 h, where as process 2 is only 500 h. Production costs for process 2 are twice those for process 1. What value of production cost will determine the selection between processes 1 and 2?
The computer breaks down x times during t hours, it costs 50x2 dollars to fix it. How should the company select t in order to maximize the expected profit?
A yearbook page is to be designed so that there are 24 square inches available for print or pictures with margins of 1.5 inches on the top and bottom
which of the following is true for a symmetrical distribution?a. mean modeb. median modec. the mean median and mode
two samples of size 25 each yielding x-bar 6.47 sx 1.14 y-bar 6.17 and sy 1.166 show a significant difference
Privacy Are your finances, buying habits, medical records, and phone calls really private? A real concern for many adults is that computers and Internet are reducing privacy. A survey conducted by Peter D.
Muscular dystrophy is an incurable muscle-wasting disease. The most common and serious type, called DMD, is caused by a sex-linked recessive mutation. Specifically; women can be carriers but do not get the disease; a son of a carrier has probabili..
If you were with the franchisee, would you want the level of significance to be higher or lower? why? if you used the franchisee's level of significance, would your power be higher or lower than before or would it not change?
Of the registered voters contacted, 33% are registered Democrats. Is each of the boldface numbers a parameter or a statistic?
The BATF wants to evaluate true average lead level for California wines to within 29 parts per billion at 95% level of confidence?
find the probability distribution that in a random sample of size n4 from continous uniform population with alpha0 and
1. if a population mean is 300 and the sample mean is 400 the difference of 100 is calleda.standard errorb.sampling
Choose at random one of the random sample averages of 5 rectangles. Calculate the average value for a random sample of 20 rectangles.
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