es increased sleep lead to better SAT scores?  A sample of 11 participants slept for at least 10 hours before taking the SAT.  The sample's SAT scores were compared to the national average SAT score (population mean).  Analyses found that participants in the sample had significantly higher SAT scores compared to the population, with t-statistic = 2.00.  How much of the variance in SAT scores was explained by increasing sleep?

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A:

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