10. a factory has a machine that dispenses 80 mL of fluid in a bottle. An employee believes the average amount of fluid is not 80 mL. Using 40 samples, he measure the average amount dispensed by the machine to be 78 ml with a standard deviation of 2.5. use 0.05 significance level. 

What is the observation value ? 

 

Answer rating: 100% (QA)

The observation value is the sample mean which is 78 mL in this case Hypothesis ... View the full answer