Stat 112: Lecture 18 Notes. Chapter 7.1: Using and Interpreting Indicator Variables. Visualizing polynomial regressions in multiple regression Review Problem for Quiz. Comparing Toy Factory Managers.
0 if Manager is not A
0 if Manager is not B
0 if Manager is not C
38.41-(-23.76)=62.17 minutes slower than Manager C.
vs. Ha: not all manager[a],manager[b],manager[c] equal. Null hypothesis is that all managers are the same (in terms of mean run time) when run size is held fixed, alternative hypothesis is that not all managers are the same (in terms of mean run time) when run size is held fixed. This is a partial F test.
because JMP has constraint that manager[a]+manager[b]+manager[c]=0.
An analyst working for a fast food chain is asked to construct a multiple regression model to identify new locations that are likely to be profitable. The analyst has for a sample of 25 locations the annual gross revenue of the restaurant (y), the mean annual household income and the mean age of children in the area. Data in fastfoodchain.jmp