MAT 122 Lecture Notes - Lecture 12: Statistical Process Control, Control Chart
Document Summary
Mat 122- lecture 13- statistical process of control. Listed below are global mean temperatures (in celsius) of the earth for 50 recent and consecutive years. Test for randomness above and below the mean. Compute the mean x-bar = 712. 78 / 50. *use z because n1 and n2 are above 20: global mean temperatures are random with respect to above and below the mean (=) H1: : =. 05, z= (g- g) / g. Nd . 025 in in the body of the table: there is suf cient evidence to warrant rejection of the claim that global mean temperatures are random with respect to above or below the mean, reject h0. Make a run chart of the following data. D3&d4 are from table 14-2: considered out of control if it does any of the following, any of the 7 bad things from the run chart, any point above ucl or below lcl, run of 8 rule.
