Which of the following statements is NOT true about the t-test:

		The t-test can be used to compare ordinal or nominal categorical values.
		The t-test can be used to determine if the mean of two groups are the same or different.
		One-sample t-test can be used to compare a sample's mean to a fixed target number.
		Two-sample, independent t-test can be used to compare the means of two independent populations.