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Lifetimes of AAA batteries are approximately normally distributed. A manufacturer wants to estimate the standard deviation of the lifetime of the AAA batteries it produces. A random sample of 15 AAA batteries produced by this manufacturer lasted a mean of 9.8 hours with a standard deviation of 2.5hours. Find a 90% confidence interval for the population standard deviation of the lifetimes of AAA batteries produced by the manufacturer.
Carry your intermediate computations to at least three decimal places. Round your answers to at least two decimal places.
What are the lower and upper limits of the 90% confidence interval
How much time does it take on the average from the moment a plane joins the queue until it lands and clears the runway?
Consider the symmetric traveling salesman problem with the graph shown in Fig. 10.16. (a) Find a suboptimal solution using the nearest neighbor heuristic starting from node 1.
question 1 explain the continuity correction factor and provide a good example. 3-4 paragraphsquestion 2 randomly
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based on an examination given to a large class in which the maximum score is 100 points assume that 20 grades taken at
the national study of the changing workforce conducted an extensive survey of 2958 wage and salaried workers on issues
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