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A Manager needs to decide between two machines to put into market following a Weibull distribution.
Machine X test unit cost $3000 with beta=3 and theta=500
Machine Y test unit cost $2000 with beta=3 and theta=400
If the machines has a life of 20 hours which machine would go to market?
If probability the first truck is available is= .75, probability the second truck is available is= .50, and probability both are available is= .30, determine the probability which neither truck is available?
What is the probability that a cereal would either high calorie or high fiber? In other words, what is P(high calorie or high fiber)?
Test to see if the mean cell phone bill has changed since 2004. Use a .05 level of significance for the test.
Is there evidence that the population mean is above $300, if X (bar) = $305.11 and s = $43.20?
A school tracks the absences of pupils as part of a flu surveillance system. Regular reporting of absences among 25 students in grade 1 are taken, and based on these data, the long-run proportion of absences under normal conditions is estimated to..
What is the probability that the sample mean will be greater than M = 510. In symbols, what is p (M>510)?
What is the probability that the drug will be effective for 3 hours or more?
Which of the following is true about the expected value of perfect information. It is the amount you would pay for any sample study.
Create the estimated regression equation by calculating the values of b 0 and b 1
First explain what the Gini coefficient is and what hypothetical Gini values of 0 and 1 mean. Sort the data by the Gini coefficient in 2000 and look at the list of countries.
Eighty-eight shoppers were interviewed at random, and 59 said that they prefer to shop alone. What is the value of q-hat?
A company makes molded plastic toys. They study the plastic injection process into the molds. A common cause of variation and What are the control limits for an chart
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