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An important part of any dispensing process is statistical quality control. Mach

ID: 3058255 • Letter: A

Question

An important part of any dispensing process is statistical quality control. Machines are supposed to dispense on average 600 ml of soda to every glass. At a random point each hour, the owner dispenses and checks a glass to determine the actual volume dispensed. One day the volumes are:

600.15             599.92             599.85             599.92

599.81             600.14             600.04             599.98

The computed sample mean is 599.98. Is there sufficient evidence to conclude that the average volume of soda dispensed is different than 600 ml? Test at alpha = 0.05. WHAT IS THE TEST STATISTIC?

-3.54

1.27

-0.45

0.5

A.)

-3.54

B.)

1.27

C.)

-0.45

D.)

0.5

Explanation / Answer

An important part of any dispensing process is statistical quality control. Machines are supposed to dispense on average 600 ml of soda to every glass. At a random point each hour, the owner dispenses and checks a glass to determine the actual volume dispensed. One day the volumes are:

600.15             599.92             599.85             599.92

599.81             600.14             600.04             599.98

The computed sample mean is 599.98. Is there sufficient evidence to conclude that the average volume of soda dispensed is different than 600 ml? Test at alpha = 0.05. WHAT IS THE TEST STATISTIC?

-3.54

1.27

-0.45

0.5

A.)

-3.54

B.)

1.27

C.)

-0.45

D.)

0.5

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