# Question

Which statement is correct? Why not the others?

a. The level of significance is the probability of committing Type I error.

b. As the sample size increases, critical values of t.05 increase, gradually approaching z.05.

c. When is unknown, it is conservative to use z.05 instead of t.05 in a hypothesis test for.

a. The level of significance is the probability of committing Type I error.

b. As the sample size increases, critical values of t.05 increase, gradually approaching z.05.

c. When is unknown, it is conservative to use z.05 instead of t.05 in a hypothesis test for.

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