# Suppose two independent random samples of sizes n1 = 9 and n2 = 7 that have been taken fro

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Suppose two independent random samples of sizes n1 = 9 and n2 = 7 that have been taken from two normally distributed populations having variances σ21 and σ22 give sample variances of s12 = 11 and s22= 107.

a)  TestH0: σ21= σ22versusHa: σ21≠ σ22withα= 0.05. What do you conclude?(Round your answers to 2 decimal places.)

b)  TestH0: σ21 ≥ σ22versusHa: σ21< σ22withα= 0.05. What do you conclude?(Round your answers to 2 decimal places.)

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