Question: Help with getting A and B. Need Hypothesis, rejection region, test statistic and conclusion. 1. A wealthy investor is considering two types of investment. She

Help with getting A and B. Need Hypothesis, rejection region, test statistic and conclusion.

1. A wealthy investor is considering two types of investment. She is quite satisfied the expected return on investment 1 is higher than the expected return on investment 2. However, she is quite concerned that the risk associated with investment 1 is higher than that of investment 2. To help make her decision, she randomly selects five monthly returns on investment 1 and seven monthly returns on investment 2. She finds that s? = 206 and s? = 110. a) Can she conclude that the population variance of investment 1 exceeds that of investment 2? Use a =.05. b) Estimate the ratio of the two population variances with 95% confidence

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