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We collected a sample of 30 measurements of one gallon gas, and we get X_bar = 1.1021. 1. We are interested to know whether the

We collected a sample of 30 measurements of one gallon gas, and we get X_bar = 1.1021. 1. We are interested to know whether the machine is properly calibrated, H0: mu=1, H1: mu not equal to 1. 2. We are interested to know whether the pump is adjusted intentionally to short customer: H0: mu>=1, H1: mu <1

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