Population proportion of printers
A random sample of 90 printers discovered that 25 of them were being used in small businesses . Find the 95% limit for the population proportion of printers that are used in small businesses.
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The population standard deviation is 30 sat points. what is the probability that a random sample of 36 students will have a mean verbal sat score that is great than 535?
A electrical device consists of 4 identical components arranged so that the device functions if and only if all four components are working. Find the mean lifetime of this device?
The Enhancing Well-Being with Psychology section provides a number of tops to help minimize sleep problems. Which of the following is NOT one of those recommendations?
Define self-esteem, including contingencies of self-worth. When might the pursuit of self-esteem be harmful to individuals? when can the threats of self-esteem be helpful?
An auditor knows from past history that the average accounts receivable for a company is 519.75 dollars with a standard deviation of 601.05 dollars. If the auditor takes a simple random sample of 93 accounts, what is the probability that the mean
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What is a 95% confidence interval on our estimate of mean if our sample of 40 observations (with a sample standard deviation of 1.6) produces a sample mean of 161.3?
Find a peer reviewed article which discusses the effects of optimism on physical and psychological health. (You may need to find two articles in order to cover both the physical and the psychological areas).
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