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A scientist tracking the long-term effects of the Clean Air Act wants to see if there is a significant difference in average lake pH between
A scientist tracking the long-term effects of the Clean Air Act wants to see if there is a significant difference in average lake pH between two border states. Use the following information to construct a confidence interval about the difference of the means and draw a conclusion. Normal probability plots support the assumption of normality for both samples. a=0.01 Construct a confidence interval about the difference of the means and select the correct conclusion. State 1 State 2 n1 = 21 n2 = 19 X1 = 5.78 *2 = 6.32 $1 = 1.45 $2 = 2.20 O (-2.2544, 1.1744) There is not enough evidence to support the claim that there is a significant difference in mean lake pH between the border states. (-1.7773, 0.6973) There is not enough evidence to support the claim that there is a significant difference in mean lake pH between the border states. O (-2.0602, 0.9802) There is enough evidence to support the claim that there is a significant difference in mean lake pH between the border states. O (-2.2544, 1.1744) There is enough evidence to support the claim that there is a significant difference in mean lake pH between the border states. (-2.0602, 0.9802) There is not enough evidence to support the claim that there is a significant difference in mean lake pH between the border states
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