HI$,$ Im trying to put this equation into a a t$-$test or a correlation$/$regression analysis. The amount of ambulance calls in Norwood is an average of $18$ calls in a $24-$hour period. This includes all mutual aid calls in Norwood and out of town. The purpose of the project is to figure out the average time of day that an ambulance responds to an Advanced life support call vs a basic life support call. On average, over the past $4$ years, basic life support calls have been $67\%$ of the calls to the $33\%$ advanced. Basic life support calls are $55\%$ during the day From $8$am$-6$pm and $45\%$ at night from $6$pm$-8$am$,$ Advanced life calls are $75\%$ during the day, $25\%$ at night on average, Let me know if you have a formula or a t$-$test or a correlation$/$regression analysis. Looking to solve a T$-$test and find the answer? I am also looking to find out which ambulance i will go out on average at what times for a project. thanks!