While the t-test is used to compare the means between two groups, ANOVA is used to compare means between 3 or more groups. There are several varieties of ANOVA, such as one-factor (or one-way) ANOVA, two-factor (or two-way) ANOVA, and so on, and also repeated measures ANOVA.
If you recall, CN VII is responsible for taste sensation in the anterior two-thirds of the tongue. Well, it's the glossopharyngeal nerve, also known as cranial nerve IX, that is the nerve responsible for the sensation of taste in the posterior one-third of the tongue. In addition, cranial nerve IX is a nerve that innervates one of the three major salivary glands, called the parotid gland.
Function of the Olfactory Nerve. The olfactory nerve is responsible for your sense of smell and partially responsible for your sense of taste. It is also known as cranial nerve 1 because it is the shortest of the cranial nerves and one of only two nerves (the other is the optic nerve) that bypass the brain stem and connect directly to your brain.