Question

1. Suppose that we are interested in factors influencing young children’s attention to television.  Specifically, we want to test the amount of attention that children pay to television depends upon the degree of their understanding of the programming.  We randomly sample 50 young children and have them watch a 60-minute program judged “easy” to understand, and have another random sample of 40 young children watch a 60-minute program judged “difficult” to understand.  On average, children who watched the easy program attended for 40 minutes, with a sample standard deviation of 10 minutes.  The children who watched the difficult program attended for an average of 30 minutes, with a sample standard deviation of 8 minutes.  Complete the appropriate hypothesis test using alpha = .05. State your results in English.

Answer 1