as Many young men in North America and Europe (but not in Asia) tend to think they need more muscle to be attractive. One study presented 25 young American men with 100 images of men with various levels of muscle. Researchers measure level of muscle in kilograms per square meter of body surface area (kg/m?) . Typical young men have about 20 kg/m. Each subject @) Macmillan Learning chose two images, one that represented his own level of body muscle and one that he thought represented "what women prefer The mean gap between self-image and "what women prefer" was 2.35 ky/mand the standard deviation was 3.5 ky/m. Suppose that the "muscle gap" in the population of all young men is not known. Give a 90% confidence interval for the mean amount of muscle young men think they should add to be attractive to women. (They are wrong: women actually prefer a level close to that of typical men.) Give your answers to four decimal places. 1.153 lower limit: Incorrect 3.547 upper limit: ky/m Incorrect