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2. Consider the following data. Assume that the population variances are identical. Population 1: Population 2: Type A Type B 70.4 67.8 3.2 3.5 11

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2. Consider the following data. Assume that the population variances are identical. Population 1: Population 2: Type A Type B 70.4 67.8 3.2 3.5 11 9 a. Using a 90% confidence interval, state and justify your conclusion from the following te He : P1 = #12 b. Using the same test in part (a), can you reject the null hypothesis at the 10% level? Just

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