A process engineer is investigating the inherent variability of two types of equipment that can be used to monitor the output of a production process: He suspects that the old equipment; type I, has a larger variance than the new one. Two random samples of n1 = 12 and n2= 10 observations are taken, with sample variances of 14.5 and 10.8 respectively:Test whether his suspicion is true using an alpha of 0.05.
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