You are the department director of operations for the Secretary of State. You are developing alternative processes for measuring the wait times at Secretary of State offices. You have developed a new operating system which you will implement at five different sites across Michigan. The average daily wait time will be collected for all five sites in total during a one month period (20 days) and compared to the daily wait times collected in total for the previous month under the old system. You are only interested in comparing the new 20 day average with the old 20 day average.

You are testing to see if there is a significant reduction in the wait times using the new system. What type of statistical test should you use? Assume the data is normally distributed.

Question 1 options:

A) 

Anova

B) 

t test of means

C) 

Correlation analysis

D) 

Regression analysis