A Manufacturer of Salad Dressings Uses Machines to Dispense Liquid

question 144

Multiple Choice

A manufacturer of salad dressings uses machines to dispense liquid ingredients into bottles that move along a filling line.The machine that dispenses dressing is working properly when 8 ounces are dispensed.The standard deviation of the process is 0.15 ounces.A sample of 48 bottles is selected periodically,and the filling line is stopped if there is evidence that the mean amount dispensed is different from 8 ounces.Suppose that the mean amount dispensed in a particular sample of 48 bottles is 7.983 ounces.Calculate the test statistic.

• A)-0.785
• B)-1.57
• C)-3.04
• D)1.57
• E)0.785

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