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In 2019, statistics students in Quebec Universities scored po = 75.91 on average on a test of basic math ability. In 2020, the mean score

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In 2019, statistics students in Quebec Universities scored po = 75.91 on average on a test of basic math ability. In 2020, the mean score on the same test for a random sample of 20 Quebec statistics students was m = 80, with a standard deviation of s = 15.1415. Compute the lower limit of the approximate 95% confidence interval around the estimated effect size computed with m - uo in the numerator

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