Mathematics, 23.04.2020 20:31 cbaughn11
At the end of 2018, the variance in the semiannual yields of overseas government bonds was 0.65. A group of bond investors met at that time to discuss future trends in overseas bond yields. Some expected the variability in overseas bond yields to increase, while others took the opposite view. A random sample of 15 overseas bonds taken in March, 2019, generated an average semiannual yield of 3.357 percent with standard deviation 0.721. We want to test if the variance in overseas bond yields has changed since 2018. Use significance level 0.05.
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At the end of 2018, the variance in the semiannual yields of overseas government bonds was 0.65. A g...
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