Question

of Menthe L-32485132Akquestionld-58flushed-fabe&cld-54465658centerwin yes Mat 147 Statistics Summer I 2019 Alexis Bedard & 6/18/19 11:51 PM Homework: Homework 5 sti Out Save Score: 0.33 of 1 pt 7 of 11 (11 complete) HW Score: 90 3 % , 993 of 11 pts $Instructor-created question EQuestion Help What are the chances your flight will leave on time? To the right are a histogram and summary statintics for 144 the percentage of flights departing on time each month from 1995 thru 2006 , 20 15 80 3056 10 4.63033 65 OT Departure <p(OT Departure % ) < | (Round to two decimal places as needed.) c) Interpret this interval for a traveler planning to fly Choose the correct answer below A. We can be 90% confident that the interval contains the true mean monthly percentage of on-time departures O B. Arandomly selected month has a 90 % chance of having an on-time departure percentage within the interval O C. There is a 90 % chance that the true mean monthly percentage of on-time departures is within the interval. O D. 90% of all months have on-time departure rates within the interval () Mote Click to select your answer(s) and then click Check Answer Check Answer Clear A All parts showing 1151 P OK 6/18/20 search

Answer 1

We have given :.- 144 S12е — Sample 8o .3056 Megn sample etandard deviation Ч.63033 сьгfid ence inteva chanies of on time 1egve Flight will Гуѣ (ale * EEое9:h t b) tSo [raзве. o -Г80.Зь50 023] to. 632

(80.356 =[ (80.3056 - o. 6323), 19.61 < u CoT Oepa rtune ) A Answer Confident that the can Le we mean monthy tue interal contains the an -time depantres of Perntentage