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Assume that sample data, based on two independent samples of size 25, give us c1 = 505 , 2 = 515, 81 = 23, and

Assume that sample data, based on two independent samples of size 25, give us c1 = 505 , 2 = 515, 81 = 23, and $2 = 28. What is a 95% confidence interval (use the conservative value for the degrees of freedom) for /42 - /1? O (-4.57, 24.57) O (5.79, 14.21) O (-2.40, 22.40) O (-4.96, 24.96)

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