Question: The recommended daily allowance (RDA) of cobalamine (Vitamin B₁₂) for growing teens is 2.4 µg (micrograms). My brother takes it upon himself to make sure that everyone get the message. It is generally believed that growing teens are getting less than the RDA of 2.4 µg of cobalamine daily.

It is an open secret that Au & Associates PseudoPharmaceutical (AAP) peddles dietary supplements around the globe. It is claimed by representatives of AAP that by taking their vitamin supplement extracted from Atlantic scrod, brand-named as Pillule-au-Sashimi, teens will have the RDA of cobalamine. Médecins Sans Frontières (MSF) has a strong contingent of volunteers in the People's Republic of Banana. It is in this remote republic MSF is going to take on AAP for good.

MSF volunteers managed to collect with a 24-hour period blood samples of 10 randomly selected teens in the People's Republic of Banana for cobalamine. The amounts of cobalamine (in µg) determined in these 10 randomly selected teens are given as follow:

1.85 2.35 1.87 1.90 1.37 2.35 2.55 2.28 1.95 2.49

Based on their global experience, MSF assumes that the the population standard deviation of cobalamine in teens to be 0.56 µg.

Now, you are asked to weigh in on the dispute between Médecins Sans Frontières (MSF) and Mu & Associates PseudoPharamaceutical (AAP).

What is the resultant p-value?