Output from a software package follows:One-Sample Z:
Test of mu = 20 vs > 20
The assumed standard deviation = 0.75
Variable = x
N = 10
Mean = 19.889
StDev = ?
SE Mean = 0.237
Z = ?
P = ?
(a) Fill in the missing items. What conclusions would you draw?
(b) Is this a one-sided or a two-sided test?
(c) Build a confidence interval that is appropriate for this test
(d) What would the P-value be if the alternative hypothesis is H1: μ≠20?
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