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Due to habitat, giraffes travel in small groups. Hence, they require excellent vision in order to detect predators.' The eyesight of giraffes was studied in African Zoology (Oct. 2013). The researchers measured a variety of eye characteristics for 27 giraffes native to Zimbabwe, Africa. One variable measured was eye mass (in grams). The study reported 5?: = 53.49 and s 2 8.69 . Calculate the left (lower) boundary of a 90% condence interval for the mean eye mass (in grams) of giraffes native to Zimbabwe, Africa. Round your answer to 2 places after the decimal