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1. "If we want to cut the maximum likely error in half, we'll have to double the sample size." Is this statement correct? Why or why not?
2. In determining the necessary sample size in making an interval estimate for a population mean, it is necessary to first make an estimate of the population standard deviation. On what bases might such an estimate be made?
3. From past experience, a package-filling machine has been found to have a process standard deviation of 0.65 ounces of product weight. A simple random sample is to be selected from the machine's output for the purpose of determining the average weight of prod- uct being packed by the machine. For 95% confidence that the sample mean will not differ from the actual population mean by more than 0.1 ounces, what sample size is required?
4. Based on a pilot study, the population standard deviation of scores for U.S. high school graduates taking a new version of an aptitude test has been esti- mated as 3.7 points. If a larger study is to be under- taken, how large a simple random sample will be nec- essary to have 99% confidence that the sample mean will not differ from the actual population mean by more than 1.0 point?
describe three examples of the authors use of humor.what important subjects are addressed in this excerpt? present two
The role of the victim of domestic violence has helped shape criminal justice responses.
Large protests broke out in Spring 2009 at the G-20 Summit meeting in London. Anarchists and other far left groups argued that capitalism has been proven a failure as the leading world economic system.
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In a sentence or two, what is the premise of the play? Describe the exposition. What is the inciting incident? Give the exact line or action. Why is this the inciting incident? Briefly describe the events of the rising action.
Do the typical male-female patterns of conversation identified by Tannen correspond with your experience of communicating in mixed-sex groups?
hi does anyone help me to write a critical essay? it is about cultural anthropology and the question is does
Using your own words, write at least 100 words describing the concept of "nature versus nurture"
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