Aircrew escape systems are powered by solid propellant. The burning rate of this propellant is an important product characteristic. Specifications required that the mean burning rate must be 50 centimeters per second. It has been known that the standard deviation of burning rates is 2 centimeters per second. The experimenter decides to specify a type I error probability or significance level of 0.05 and selects a random sample of 25 and obtains a sample mean burning rate of 51.3 centimeters per second. Perform a hypothesis test to determine if the mean burning rate of the propellant is significantly different from the specified value. What is the Null Hypothesis and Alternative Hypothesis.

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