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A website is trying to increase registration for first-time visitors. Of 957 randomly sampled visitors over a month who saw t
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solution: h= 0.2194 ME = 2912 311-6) 9) HE= 2.20 7% $2«121645} C = Ê ZME 19.74 7% to 24.14% b) 230.05 2012 31.96? ME = [2.62

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