Question: A new curing process developed for a certain type of cement results in a mean compressive strength of 6000 kilograms per square centimeter with a

A new curing process developed for a certain type of cement results in a mean compressive strength of 6000 kilograms per square centimeter with a standard deviation of 150 kilograms. To test the hypothesis that = 6000 against the alternative that < 6000, a random sample of 50 pieces of cement is tested. The critical region is defined to be x < 4970. Identify with help of diagram and table, the type I, type II errors and also show critical and rejection regions on diagram.

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