What is the probability that a random sample have mean
The average verbal sat score of all students is 540 and 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?
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Make a table with x-column money to win/lose (+/-) and probability lumn P(x)that this happens, then calculate Expected Value of x E(x) for this distribution.
A life insurance company has determined taht each week an average of seven claims is filed in its Nashville branch. What is the probability that during the next week exactly seven claims will be filed?
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Applicants with exam scores in the lower 10% are directed to special retraining. What is the minimum score required not to be directed to retraining?
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?
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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