I'm really confused that how can we get confidence interval in this demo question.
Looking forward to your reply!
I have checked document, and found no meaningful explanation for this question. This is why I post on forum. thanks.
Actually this question is 9th question in Adobe Target Analyst 9A0-399 ACE document example questions, I'm preparing for this test, so can you offer me the full explanation for this question? I'm really wonder how can I get confidence interval without calculator and other information for this question..