You may need to use the appropriate appendix table or technology to answer this question. standard deviatice is 4.55 fer ships that carry fewer than 500 passengers and 3.97 for ships that carry 500 or more passengers. passengers? (use smaller cruise ships - larger crulse ships.) (b) At 95\% confidence, what is the margin of emor? (Round your antwer to two decimal places.) to two decimal placesi.) to