The manager at Air Cargo feels that the weights of packages shipped recently are less than in the past. Records show that in the past packages have had a mean weight of 36.7 lb. and a variance of 201.64 lb2. A random sample of last months shipping yielded a mean weight of 32.1 lb. for 64 pounds. Is this sufficient evidence to reject the null hypothesis in favor of the manager’s claim? Use α = 0.01
What would my null and alternate hypothesis be?
1 answer