Refer to the computer anxiety scores for female accounting students in Table D.4 of the Data Bank. A computer calculation for a test of H0: μ = 2 versus H1: μ ‰  2 is given here.

(a) What is the conclusion if you test with a = .05?
(b) What mistake could you have made in part (a)?
(c) Before you collected the data, what was the probability of making the mistake in part (a)?
(d) Give a long-run relative frequency interpretation of the probability in part (c).

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Test of mu = 2 vs mu not = 2 Variable N Mean StDev FCARS 15 2.514 0.773 variable 95.0% CI FCARS T P 2.086, 2.942) 2.58 0.022