Answer to Question #206755 in Statistics and Probability for Anet

Question

_{A nutritionist claims that her developed cookies are fortified with vitamin B,determine whether one-tailed or two-tailed}

Answer 1

Since the nutritionist directly claims the supposed vitamin B of her developed cookies, the sample being tested falls into the one-sided critical area. Since it is a statistical hypothesis shows that the sample mean would be higher or lower of the sample mean, but not both.

The test is a one-tailed test.