The two different formulas for the t test are for which two different types of problems?
a. the samples are dependent or the samples are independent
b. the variances are assumed to be equal or unequal
c. the samples are both large or both small
d. the populations are normally distributed or skewed
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the 2 different formulas are for d)the populations are normally distributed or skewed.
Note: the t distribution approximates to normal distribution as degree of freedom tends to infinity.© BrainMass Inc. brainmass.com September 26, 2022, 5:17 pm ad1c9bdddf>