Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Discover the answers you need from a community of experts ready to help you with their knowledge and experience in various fields. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

what will reduce the width of a confidence interval? a) increase variance. b) decrease confidence level. c) increase confidence level. d) decrease number in sample.