1. You ask 12 people how much money they spent the last time they went to a grocery store, and here are their responses:

20 58 72 37 65 41 48 56 30 75 59 52

1. Assume that for all shoppers, = 58.5 oz and _x = 11.0. Does your sample spend more or less than average, where = .05? (Follow the five steps, then write a conclusion that would be appropriate for a research paper.)
2. Would your conclusion be different if you were doing this z test with = .01? Why or why not?