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The mortality experience of 8146 male employees of the research, engineering, and metal-fabrication plant in Tonawanda, New York, was studied from 1946 to 1981 [5]. Potential workplace exposures including welding fumes, cutting oils, asbestos, organic solvents, and environmental ionizing radiation, as a result of waste disposal during the Manhattan Project of World War II. Comparisons were made for specific causes of death between mortality rates in workers and U.S. white-male morality rates from 1950 to 1978. Suppose that 17 deaths from cirrhosis of the liver were observed among workers who were hired prior to 1946 and who had worked in the plant for 10 or more years, whereas 6.3 were expected based on US white-male mortality rate.
Question:
Perform a significant test to assess whether there is an association between mortality from cirrhosis of the liver and duration of employment in the group hired after 1945. Report a p-value.
Two types of flares are tested for their burning times (in minutes) and sample results are given below.
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The house of representatives has a very controversial bill that will be going to vote. To help formulate his strategy on how to get the bill passed, the chairman of the committee that has been studying the bill wishes to know if there is a divisio..
Critically discuss some examples of literature reviews and statistics used and available at your work place or organization? What are they used for and how are they determined?
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Answer the following three questions based on what you know about statistics now.
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A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of$3.02.
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