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1. Test the hypothesis H0:µ X‾ and s: (a) X‾= 44, s = 10, (b) X‾= 43, s = 10, (c) X‾ = 43, s = 2.
2. Repeat given Exercise, except test H0:µ > 42.
ExerciseTest the hypothesis H0:µ X‾ and s: (a) X‾= 44, s = 10, (b) X‾= 43, s = 10, (c) X‾= 43, s = 2.
From Conditional distribution and the Bivariate Normal distribution.
Conduct all steps of the hypothesis test. Remember to include hypotheses, test statistic, decision, and conclusion.
Figure 20.3 shows CCW's average daily call volume for each quarter of the past three years, and column F of Fig. 20.4 gives the seasonally adjusted call volumes.
Enzymatic method: 13.1, 12.7, 12.6, 13.3, 13.3. GC method: 13.5, 13.3, 13.0, 12.9. Does the enzymatic method give the same value as the GC method at the 95% confidence level?
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