7 Suppose that independent random samples each consisting of 16 cases were drawn at random rom two normal populations. The first sample produced a sample standard deviation S 38.2 and the second...

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Extracted text: 7 Suppose that independent random samples each consisting of 16 cases were drawn at random rom two normal populations. The first sample produced a sample standard deviation S 38.2 and the second sample a standard deviation S 89.2. The null h alternative was "not Ho." Test the null hypothesis. ypothesis was H: σ σ and the