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Social Studies, 21.04.2020 20:33 willveloz4

A group of psychologists was interested in knowing whether living environment had any effect on a student's grade point average (GPA). They took a set of twins and randomly assigned one sibling of the twins to live in an urban area and the other to live in a rural area After one year, they computed the GPAs for the twins and looked at the differences. Then they calculated the test statistic, and the P-value was found to be between 0.20 and 0.25. With a 0.05 level of significance, we should H0, and conclude that there is insufficient evidence to suggest that a difference exists between the mean GPAs of the two living environments.

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