I am very stuck on this

Question 3 (Software Part). The process that produces Sonora Bars (a type of candy) is intended to produce bars with a mean weight of 56 gm. The process standard deviation is currently 0.77 gm. A random sample of 49 candy bars yields a mean weight of 55.82 gm. Is there significant evidence to show that the candy bars are smaller than they are supposed to be. Summarize your memos (including the statistical tools/ distributions/methods you plan to use) in a separate section of your final file and rename that sheet Sonora, (10 Points)