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A chemical plant has an emergency alarm system. When an emergency situation exists, the alarm sounds with probability 0.95. When an emergency situation does not exist, the alarm system sounds with probability 0.02.
A real emergency situation is a rare event, with probability 0.004. Given that the alarm has just sounded, what is the probability that a real emergency situation exists?
Construct a stem and leaf plot of the income. what do you predict about the shape of the population distribution. complete the following sentence. Fifty percent of the data falls below $ ______.
Risk taking is an important part of investing. In order to make suitable investment decisions on behalf of their customers, portfolio managers give a questionnaire to new customers to measure their desire to take financial risks.
A second sample of 61 has a mean of 100 and a population standard deviation of 8. Conduct a z-test about a difference in sample means using a 0.03 significance level and the following hypotheses.
deliverable length 500-1000 wordscompany w is testing a sales software package. their sales force of 500 people is
an electronic company manufactures resistors that have a mean resistance of u 100 ohm and a standard deviation s 10
last weeks sales of imac computers at an apple store in oklahoma city ok are shown in the following tabledaysales
Assume the probability that a person has the desease is 0.03 for all people, independently of each other. Compute the total expected number of tests necessary.
What are the key components needed to determine if you have a positive skewed normal distribution?
What are the advantages and disadvantages of regression models in comparison to using a computerized regression routine? Give examples.
fifty students are enrolled in an economics class. after the first examination a random sample of 5 papers was
1. Suppose we want to estimate the effect of price on sales using this dataset.
What is the name of the Buckinghamshire site which housed personnel from the Government Code and Cypher School during World War II?
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