5. An inspector wants to test if the Coke-litro-filling machine is defective by getting a random sample of 22 Coke litro from different batches filled by the machine. It is found out that the sample mean of the random sample is about 1.09 liters with a sample standard deviation of 0.15 liters. Which among the values below is the value of t?  a. t ≈ 2.8142  b. t ≈ 1.232  c. t ≈ -1.232  d. t ≈ -2.8142

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