Consider the hypothesis test H0: μ1 = μ2 against H1: μ1 > μ2 with known variances σ1=10 and σ2=5. Suppose that sample sizes n1=10 and n2=15 and that x-bar1 = 24.5 and x-bar2 = 21.3. Use alpha = .01. Determine the confidence interval.
a) =0
b) ≥2.78
c) ≥3.04
d) ≥-4.74
Solution:-
The 99% confidence interval is C.I = (- 6.398, 12.798).
C.I = 3.2 + 2.81 × 3.41565
C.I = 3.2 + 9.598
C.I = (- 6.398, 12.798)
Consider the hypothesis test H0: μ1 = μ2 against H1: μ1 > μ2 with known variances...
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