SOLUTION: c. compute the value of the test statistic z(1100-1090) = (1100-1090)/sqrt[(45^2/35) + (55^2/40) = 0.8655 How did Stan H. arrive at the above .8655 on question 179268? I don't

Question 924259: c. compute the value of the test statistic
z(1100-1090) = (1100-1090)/sqrt[(45^2/35) + (55^2/40) = 0.8655
How did Stan H. arrive at the above .8655 on question 179268? I don't get that at all...I'm doing something wrong...
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

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