SOLUTION: If Z-score=(7-5)/1=2 and at .05 significance level for a one-tailed test, the z-score cut-off value = +1.645 "Can you show me how you got the answer +1.645 for the cut off value?"

Question 469022: If Z-score=(7-5)/1=2 and at .05 significance level for a one-tailed test, the z-score cut-off value = +1.645
"Can you show me how you got the answer +1.645 for the cut off value?"

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If Z-score=(7-5)/1=2 and at .05 significance level for a one-tailed test, the z-score cut-off value = +1.645
"Can you show me how you got the answer +1.645 for the cut off value?"
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If the test is a right-tail test, the cutoff value is the
z-value with a right-tail of 5%.
That value is invNorm(0.95) = 1.645 when using a TI calculator.
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If the one-tailed test is a left-tail test the cut-off is -1.645
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Cheers,
Stan H.
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