Mathematics, 31.03.2021 02:10, AnaiyaKirksey8

An investor believes that investing in domestic and international stocks will give a difference in the mean rate of return. They take two random samples of 15 months over the past 30 years and find the following rates of return from a selection of domestic (Group 1) and international (Group 2) investments. Can they conclude that there is a difference at the 0.05 level of significance?

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An investor believes that investing in domestic and international stocks will give a difference in t...