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Unformatted text preview: on is no more than 15 seconds. A test of 6 systems gave the following times: 17, 31, 12, 17, 13, 25 a) Is the system working as specified? Test using a = .05. b) Find a 90% confidence interval for the population average time for sprinkles to activate after being turned on....
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 Spring '08
 palmero

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