In a test of H0 : p = 0.4 against Ha : p 0.4, a random
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In a test of H0 : p = 0.4 against Ha : p ≠ 0.4, a random sample of size 100 yields a test statistic of z = 1.28.
The P-value of the test is approximately equal to
(a) 0.90.
(c) 0.05.
(e) 0.10.
(b) 0.40.
(d) 0.20.
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