Mathematics, 28.11.2019 07:31 EstherAbuwaah
The desired percentage of sio2 in a certain type of aluminous cement is 5.5. to test whether the true average percentage is 5.5 for a particular production facility, 16 independently obtained samples are analyzed. suppose that the percentage of sio2 in a sample is normally distributed with σ = 0.32 and that x = 5.24. (use α = 0.05.) (a) does this indicate conclusively that the true average percentage differs from 5.5?
state the appropriate null and alternative hypotheses.
h0: μ = 5.5
ha: μ > 5.5h0: μ = 5.5
ha: μ ≥ 5.5 h0: μ = 5.5
ha: μ < 5.5h0: μ = 5.5
ha: μ ≠5.5
Answers: 1
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