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A hypothesis tests that two population means are equal. A sample of 10 with a standard deviation of 5 is selected from the first population and a sample of 15 with a standard deviation of 5 from the second population. Testing the claim at the 0.01 level, what is the critical value? Assume unequal standard deviations. Solution ±2.576.

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A hypothesis tests that two population means are equal. A sample of 10 with a standard deviation of 5 is selected from the first population and a sample of 15 with a standard deviation of 5 from the second population. Testing the claim at the 0.01 level, what is the critical value? Assume unequal standard deviations. Solution ±2.576

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  • 1. A hypothesis tests that two population means are equal. A sample of 10 with a standard deviation of 5 is selected from the first population and a sample of 15 with a standard deviation of 5 from the second population. Testing the claim at the 0.01 level, what is the critical value? Assume unequal standard deviations. Solution ±2.576