Question: Two samples, X1, ..., X7 and Y1, ..., Y9 can be assumed to be independent and have the same variance ^ 2 and expectation values

Two samples, X1, ..., X7 and Y1, ..., Y9 can be assumed to be independent and have the same variance ^ 2 and expectation values X and Y, respectively. Data gave X = 0, Y = 1 and (SX) ^ 2 = 1. How big can (Sy) ^ 2 be for the test to reject H0: X = Y in favor of HA: X = Y at 5% significance level?

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