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Both undergraduates and postgraduates can use the university cafeteria. Each diner can choose between buying a meal or bringing a packed lunch. (Everyone has exactly one meal each, no more and no less). The cafeteria offers a daily choice between a hot meal or a cold meal. A survey of undergraduate diners finds that 40% of them bring their own food. Overall, only 25% of the diners bring their own food. Postgraduates make up one fifth of the diners in the cafeteria.
a) What is the probability that a diner is an undergraduate and has bought a meal?
b) What is the probability that someone who has bought a meal is a postgraduate?
c) Give two different examples from the question of mutually exclusive events.
Assume a random sample of 16 gasoline stations is selected and their mean cost for regular gasoline is computed. What is the standard error of the mean in this experiment?
It was a research final paper about the Ashford 308 statistics for managers course. she gave me an answer that was less than a page and I couldn't even use it. lost 50$ I offer you the same thing 50$ for a real answer.
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Suppose that students in a particular school are all very competent. For each individual, the probability that they will pass the proficiency exam (independent of thier classmates) is 0.99
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Assume rivets are defective independently of one another, each with the same probability. If 24% of all seams need reworking, determine the probability that rivet is defective?
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Should Katie conduct a between-subject ANOVA or a within-subject ANOVA? Describe your answer.
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