hi, in my lecture notes, it says: given, standard deviation of 0.1 this is a dumb question but how did they get to the second step?
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Originally Posted by Dgphru hi, in my lecture notes, it says: given, standard deviation of 0.1 this is a dumb question but how did they get to the second step? By using tables or technology you should be able to establish that for a standard normal variate, Pr(Z < 1.645) = 0.95 (correct to 4 decimal places). I hope you see the connection.
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