A Reading Readiness Test Is Administered to 8 Matched Pairs

Multiple Choice

A reading readiness test is administered to 8 matched pairs of first graders.One child of each pair had 3 years of day care experience whereas the other child had none.The results of the test are shown in the following table.(Higher scores indicate greater readiness. ) Assume á=.05,nondirectional test.
The critical t for this problem is ______.

A) 2.447
B) 3.707
C) 1.943
D) 2.179