A firm sells paint in cans containing I kg of paint per
Chapter 25, Problem 38(choose chapter or problem)
A firm sells paint in cans containing I kg of paint per can and is interested to know whether the mean weight differs significantly from I kg, in which case the filling machine must be adjusted. Set up a hypothesis and an alternative and perform the test. assuming normality and using a sample of 20 fillings having a mean of 991 g and a standard deviation of 8 g. (Choose a = 5%.)
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