8 Find a Dentist x a SOLUTION: Allen X + C webassign.net/web/Student/Assignment-Responses/submit?dep=22146485&tags=autosave YouTube Maps Paused + 3.69/4.42 points Previous Answers BBUnderStat12 7.1.015. My Notes +

8 Find a Dentist x a SOLUTION: AllenƋ X + C webassign.net/web/Student/Assignment-Responses/submit?dep=22146485&tags=autosave YouTube Maps Paused + 3.69/4.42 points Previous Answers BBUnderStat12 7.1.015. My Notes + Ask Your Teacher Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.+ Suppose a small group of 14 Allen's hummingbirds has been under study in Arizona. The average weight for these birds is x = 3.15 grams. Based on previous studies, we can assume that the weights of Allen's hummingbirds have a normal distribution, with o = 0.32 gram. (a) Find an 80% confidence interval for the average weights of Allen's hummingbirds in the study region. What is the margin of error? (Round your 80 answers to two decimal places . ) lower limit 3.15 upper limit 3.26 margin of error 0.11 png (b) What conditions are necessary for your calculations? (Select all that apply. ) o is known On is large o is unknown uniform distribution of weights normal distribution of weights (c) Interpret your results in the context of this problem X Last saved Tuesday, September 24, 2019, 7:41 PM There is an 80% chance that the interval is one of the intervals containing the true average weight of Allen's hummingbirds in this region. Apprehension MacBook Air 44 F5 F7 F8 F9 F10 41)) F12 898 F4 F6 F2 20 F3 * delete O