I the Test Statistic for a Problem Involving an Unknown

Multiple Choice

i. The test statistic for a problem involving an unknown population standard deviation is the
Student's t distribution.
ii. The t distribution approaches the Z distribution as the sample size increases.
iii. As the sample size increases, the computed value of t decreases.

A) (i) , (ii) , and (iii) are all correct statements.
B) (iii) is a correct statement but not (i) or (ii) .
C) (i) and (iii) are correct statements but not (ii) .
D) (ii) and (iii) are correct statements but not (i) .
E) (i) , (ii) , and (iii) are all false statements.