Assume that the empirical rule is a good model for the distribution of the cost of a basic hotel room in Philadelphia. The mean cost of a basic hotel room in Philadelphia is $180 per night with a standard deviation of $40 per night. What interval describes the cost of the middle 95% of basic hotel rooms in Philadelphia? Group of answer choices [$140, $220] [$100, $260] [$60, $300] [$20, $340] Flag question: Question 5