Tdesired percentage of SiO in a certain type of alu minous

Last updated: 12/5/2023

Tdesired percentage of SiO in a certain type of alu minous 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 SiO in a sample is normally dis tributed with 3 and that 5 5 25 a Does this indicate conclusively that the true average percentage differs from 5 5 b If the true average percentage is 5 6 and a level 01 test based on 16 is used what is the probability of detecting this departure from H What value of n is required to satisfy a 01 and B 5 6 01