A Manufacturer of Salad Dressings Uses Machines to Dispense Liquid

question 74

Essay

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 a confidence interval to test the hypotheses at α = .05 and determine if the process should be stopped.

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Definitions:

Diagram

A graphical representation used to illustrate relationships between different elements or steps in a process.

Corn-based Product

Goods derived from corn, including food items, biofuels, and industrial products.

Wheat

A cereal grain which is a worldwide staple food.

Ethanol

A renewable fuel made from various plant materials, known as biomass, and used as an alternative to gasoline.