1. Why is the t distribution a whole family rather than a single distribution?
2. Suppose that df 3. How do the tails of the corresponding t distribution compare with the tails of the normal curve? Support your answer by referring to Tables A and B in Appendix C (assume α 10, two-tailed).
3. Comment on the following statement: For small samples selected from a normal population, the sampling distribution of means follows Student's t distribution.