Problem based on mean weight
A frozen-food packer specifies the mean weight of a product as 200 g. The output is Normally distributed with a standard deviation of 15 g. A random sample of 20 has a mean of 195 g. Does this suggest that the mean weight is too low?
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A company wants to find the average weight of its products. A large initial sample shows the standard deviation of the weight is 20 g. What sample size would give a 95% confidence interval for the population that is (a) 10 g wide, (b) 8 g wide, (c
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suppose you attach the object with mass m to a vert spring at rest and let it bounce up and down. you release the object from restat the springs original rest length.show that the spring exerts and upward force of 2.00 mg on the object at its lowest
On January 2, 2011, the Crossover Band acquires sound equipment for concert performances at a cost of $55,900. The band estimates it will use this equipment for four years, during which time it anticipates performing about 120 concerts. It estimat
Climate change is occurring at a greater rate in high latitudes compared to mid- and low-latitude locations. Explain why this is the case given what you know about albedo and feedback cycles.
In the principle of competitive exclusion, there are no two species that can occupy the same niche. Take that same concept and expand it to the scale of the entire Earth.
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The number of road accident victims reporting to a hospital emergency ward is shown in the following table. Do these figures follow a Poisson distribution?
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