Question: 17. Listening to music while taking a test may be relaxing or distracting. We test 49 participants while listening to music, and they produce an

17. Listening to music while taking a test may be relaxing or distracting. We test 49 participants while listening to music, and they produce an X = 54.63. The mean of the population taking this test without music is 50 (a^ = 12).

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

(b) What are our Hq and H^.

(c) Compute z^bf

(d) With a = .05, what is

(e) Do we have evidence of a relationship in the population? If so, describe the relationship.

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