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You are performing a left-tailed z-test If α = .05 , find the critical value, to...

You are performing a left-tailed z-test If α = .05 , find the critical value, to two decimal places.

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Answer #1

Z critical value is -1.64..........................by using =NORMSINV(0.05) in Excel or by using Z table.

Therefore, for left tailed z test and α = .05

Z critical value is -1.64

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Answer #2

Z critical value is -1.64..........................by using =NORMSINV(0.05) in Excel or by using Z table.

Therefore, for left tailed z test and α = .05

Z critical value is -1.64

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