University of Virginia STAT STAT 1120 Hi, can someone please help me with these questions, and provide an explanation? Thank you! 1) About 76% of young adult Internet users (aged 18 to
2) Resistance training is a popular form of conditioning aimed at enhancing sports performance and is widely used among high school, college, and professional athletes, although its use for younger athletes is controversial. A random sample of 4140 patients aged 8-30 admitted to U.S. emergency rooms with the Consumer Product Safety Commission code “weightlifting” were obtained. These injuries were further classified as “accidental” if caused by dropped weight or improper equipment use. Of the 4140 weightlifting injuries, 1550 were classified as accidental.
Give a 90% confidence interval for the proportion of weightlifting injuries in this age group that were accidental. (Round your answers to three decimal places.)
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