the t-test
The t-test will only be used twice - once to compare estimated Other Bank values from the Olympia food pantry and the Lacey Food Pantry, and once to compare estimated Other Bank values from the satellite locations and the food pantries. Our goal is to determine what the average value received by our Other Bank clients is, and to identify if there is a difference in value for those who receive Other Bank at our food pantries or at our satellites.
To get data from our food pantries, we will use a 'Ghost Shopper' - on Other Bank service days, 1 per month in Olympia, 2 per month in Lacey, our Ghost Shopper will enter the line and pretend to receive an Other Bank visit; they will record the items they received, and then get right back to shopping. We must get a minimum of 70 samples from both Olympia and Lacey, so that, with the Other Bank samples from the satellite locations, we can hit our target sample size of 278. This will be difficult - if we intend to do our data collection in a single month.