Question: Question 9:

We measure the self-esteem scores of a sample of statistics students, reasoning that this course may lower their self-esteem relative to that of the typical college student (μ = 55, σ_{x =} 11.35). We obtain these scores:

44 55 39 17 27 38 36 24 36

(a) Summarize your sample data.

(b) Is this a one-tailed or two-tailed test? Why?

(c) What are H₀ and H_a?

(d) Compute z_obt.

(e) With α = .05, what is the z_crit? (α = criterion probability / greek letter alpha)

(f) What should we conclude about the relationship here?