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Determine the optimal inventory policy when the goods are to be ordered at the end of every month from now on. The cost of bringing the inventory level up to y when x already is available is given by 2(y x). Similarly, the cost of having the monthly demand D exceed y is given by 5(D y). The probability density function for D is given by The holding cost when y exceeds D is given by y D. A monthly discount factor of 0.95 is used.
A sample of 400 tickets has 72% 1's. What percentage of the entire box do you expect to be 1's? What is the standard error of your estimate?
In case of fire, the probability that D1 operates correctly is 0.95 and the probabilty that D2 operates correctly is 0.92. Find the probability that the sprinkler system will come on.
a machine is set to pump cleanser into a process at the rate of 9 gallons per minute. upon inspection it is learned
1.a recent study investigated the extent to which hypertension is affected by alcohol consumption. among other things
After the presidential debates, a random sample of 1200 voters showed that 540 favored the Democratic candidate; 480 were in favor of the Republican candidate; 40 were in favor of the Independent candidate, and 140 were undecided. At a 1% level of..
the bureau of labor statistics reported that the mean amount spent per year by all american citizens on tobacco
a high school math teacher gave her 30 students a math exam. in this exam the average scores for the high school
There are 500 employees in a firm, 45% are female. A sample of 60 employees is selected randomly. (a) Determine the standard error of the proportion.
Calculation of Standard Deviation and Variance
suppose x has a poision distribution with a mean of .4. determine the following probabilitiesa
How large a sample should be selected in order to estimate the population proportion to within a margin of error of 0.02 with 97% confidence. The sample proportion from the preliminary sample was 0.18.
A flat-bottomed hole 6 mm in diameter is drilled to a depth of 24 mm in a diffuse, gray material having an emissivity of 0.8 and a uniform temperature of 1000 K. (a) Determine the radiant power leaving the opening of the cavity.
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