A soft drink vending machine is adjusted so that on average, it will automatically dispense 200 mL into a paper cup. However, the actual amount dispensed is not exactly 200 mL. The operations manager obtains a sample of 35 cups of dispensed soda and the mean of his sample is 195 mL. The machine operates with a known standard deviation of 14 mL. At 5% level of significance, what is the appropriate decision rule?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A soft drink vending machine is adjusted so that on average, it will automatically dispense 200 mL into a paper cup. However, the actual amount dispensed is not exactly 200 mL. The operations manager obtains a sample of 35 cups of dispensed soda and the mean of his sample is 195 mL. The machine operates with a known standard deviation of 14 mL. At 5% level of significance, what is the appropriate decision rule?
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