Mathematics, 18.12.2019 00:31 carlosd21151
Amanufacturer of coffee vending machines has designed a new, less expensive machine. the current machine is known to dispense (into cups) an average of 7 fl. oz., with a standard deviation of .2 fl. oz. when the new machine is tested using 15 cups, the mean and the standard deviation of the fills are found to be 7 fl. oz. and .219 fl. oz. test h0: σ = .2 versus ha: σ ≠.2 at levels of significance .05 and .01. assume normality. (round your answer to 4 decimal places.)
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Amanufacturer of coffee vending machines has designed a new, less expensive machine. the current mac...
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