posted by Jeff .
create a null hypothesis on these research questions:
a. what are the differences between emergency room shifts on medication errors?
b. On a clinical trial of a new drug what will be the effects over a currently used drug?
math statistics -
a. Ho: Shift length is not related to medication errors
or Ho: Medication errors in standard/normal shifts = medication errors in extended shifts
b. Ho: New drug effects = current drug effects