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Mathematics, 16.07.2019 17:20 leriscepowell9004
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 = 5.23. (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 > 5.5 h0: μ = 5.5 ha: μ ≥ 5.5 h0: μ = 5.5 ha: μ ≠ 5.5 h0: μ = 5.5 ha: μ < 5.5 calculate the test statistic and determine the p-value. (round your test statistic to two decimal places and your p-value to four decimal places.) z = p-value =
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The desired percentage of sio2 in a certain type of aluminous cement is 5.5. to test whether the tru...
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