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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?
Based on your view of concurrent validity, when would it be useful to study the concurrent validity of a measure? Should Joe try to demonstrate concurrent validity?
Varying Viewpoints” notes that Ulrich B. Phillips made certain claims about slavery that have been challenged in recent years. Which of the following is not one of his conclusions?
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What do you think are the reasons why voter turnout is so low in this country? State whether or not you think this is a good or bad thing and why
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Abortion Law Makes Stop at Ninth Circuit. Name relevant points? Analysis of legal issues from article, integrated with legal principles. [JURIST] The US Court of Appeals for the Ninth Circuit [official website] on Tuesday narrowed the scope on a prel..
Locate an article on a controversial subject where the author makes an argument you do not agree with. Write a 400 word rebuttal to the article using valid arguments and supporting data. In the rebuttal, offer an analysis in which you do the follow..
Do you think that Vice Presiden Winchester would be better off dropping graphic forms, substituting instead one of the other techniques such as ranking method? Why?
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Landes argues that there were cultural differences between the East and Middle East and the West that affected the development and application of some technologies such as the clock. Did these differences also affect the way these cultures approac..
While a dishonest judge must pretend to be an honest judge, even an honest judge must play the role of "honest judge" for an audience in order to interact and work with others effectively. What theoretical perspective considers this performance?
At July 31, Kuhlmann Company has the following bank information: cash balance per bank $7,420, outstanding checks $762, deposits in transit $1,120, and a bank service charge $20. Determine the adjusted cash balance per bank at July 31.
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