How large of a sample must be taken in order to be 97%
If the standard deviation of the lifetimes of vacuum cleaners is estimated to be 300 hours, how large of a sample must be taken in order to be 97% confident that the margin of error will not exceed 40 hours?
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In a random sample of 500 college students, 23% say that they read or watch the news every day. Develop a 90% confidence interval for the population proportion.
If past information shows a standard deviation of 7 months, what size sample should be taken so that at 95% confidence the margin of error will be 2 months or less?
Find a 95% confidence interval for the difference in the mean selenium intakes for the two regions. Interpret this interval.
You and your engineering friends decide to start a small consulting firm. You secure two loans: One for $100,000 at 6.5% per year and one for $50,000 at 2.2% per quarter. What is your company's cost of capital?
Write a summary comparing two protocol analyzers (sniffers) using MAC Flooding and and use the Internet to find another. In your answer mention features the sniffer have, protocols the sniffer monitor, and information that can be learned from the pro
Assume that you have a local furniture store in your area that sells direct to the customer, thereby eliminating the middleman. Assume that the store does not manufacture the furniture. The store claims that it passes these cost savings on to you
Assume that some of the information relating to Gamma Systems Manufacturing Corporation has changed. Answer the following questions using the financial statement data in Problem 5.
If you wish to estimate m correct to within 1.6, with probability equal to 0.95, how many observations should be included in your sample?
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