In a Sample of 17 Participants,a Researcher Estimates the 90

Multiple Choice

In a sample of 17 participants,a researcher estimates the 90% CI for a sample with a mean of M_D = 7 and an estimated standard error for the difference scores (S_MD) of 2.2.What is the confidence interval at this level of confidence?

A) 90% CI 2.4, 11.6
B) 90% CI 3.2, 10.8
C) 90% CI 4.8, 9.2
D) There is not enough information to answer this question.