In a test of the effect of dampness on electric connections, 100 electric connections were tested under damp conditions and 150 were tested under dry conditions. Twenty of the damp connections failed and only 10 of the dry ones failed. Find a 90% confidence interval for the difference between the proportions of connections that fail when damp as opposed to dry.
WCOB 1111 Meet every Wednesday at 3:05 P.M. Allowed 2 absences Attend Peer Mentoring Counts toward grade One credit hour Required course DON’T BE LATE Sign in at each class Pretty easy, just come to class