'Assuming that both populations are normally distributed, construct = 90% confidence interval about H1 (0t represents the mean of the experimental group and represents tne mean of the control group ) Experimental Control 45.4 43.9 9.6 The confidence interval has lower bound of and an upper bound of (Use ascending order: Round t0 two decima places as needed:'
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Experimental group: Sample mean (x̄1) = 45.4 Sample standard deviation (s1) = unknown Control group: Sample mean (x̄2) = 43.9 Sample standard deviation (s2) = 9.6 Show more…
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