Question: TOPIC 4: Z-Tests (12 marks) h. An inspector periodically examines the quality output of a machine to verify if it is properly adjusted. IF properly

TOPIC 4: Z-Tests (12 marks) h. An inspector periodically examines the quality output of a machine to verify if it is properly adjusted. IF properly adjusted, the machine produces bars having a mean length of 2.000 inches. Furthermore, the population standard deviation is known and is 0.070 inches. For a sample of bars, the mean length is 2025 inches. Assume the population is normally distributed and assume a 0.05 level of significance. Assume Zcrit values of -1.96 and +1.96. a. Can it be implied that the machine is properly adjusted? (use sample size = 35) b. Discuss the result and suggest if any action is required

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