Answered: Is the true level of significance…

Is the true level of significance larger or smaller than .05? Is the true critical value larger or smaller than that for the critical z?

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.3: Special Probability Density Functions

Problem 8E

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Question

Even though the population standard deviation is unknown, an investigator uses z rather than the more appropriate t to test a hypothesis at the .05 level of significance. Is the true level of significance larger or smaller than .05? Is the true critical value larger or smaller than that for the critical z?

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