The local grocery store sells potatoes in 5-pound bags. Because potatoes come in unpredictable sizes, it is almost impossible to get a bag that weighs exactly 5 lbs. Therefore, the store advertises that the bags average 5 lbs. To check this claim, a sample of N = 25 bags was randomly selected. The average weight for the sample was = 5.20 pounds with s = 0.50. On the basis of this sample,

a. Can you conclude that the average weight for a bag of potatoes is significantly different (i.e. two-tail) from μ = 5 pounds? Use α = .05. (include all elements as detailed in t-Test Handout)

b. Can you conclude that the average weight for a bag of potatoes is significantly more than (i.e. one-tail) the μ = 5 pounds? Use α = .05. (include all elements as detailed in t-Test Handout)