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The desired percentage of Silicon Dioxide (SiO,) 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, 17 independently obtained samples are analyzed and a sample mcan of 5.3 was obtained. Suppose that the percentage of SiO, in a sample is normally distributed with a sigma of 0.3. Does this show conclusively that the true average is smaller than 5.5? A) State Ho and H. B) Test the hypothesis using the P-Value approach at a significance level of 4.2%, and express your decision. C) Determine the extreme value without rejecting the Ho