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9:49 PM Sun Jun 13 50% Done Final Exam Bonus Questions (1).pdf 2. Some worry that playing video games on the phone, computer, TV, and/or tablet for too long can cause vision problems in children and young adults, especially given today's technological age and the COVID-19 pandemic. Assume that a study was done recently on this topic that showed that teenagers who play video games for 550 minutes or more may experience eye strain, dry eyes, and other eye-related conditions. The lengths that teenagers (aged 13-19) play video games per week was found to be normally distributed with a mean of 350 minutes and a standard deviation of 100 minutes. Calculate the probability that a randomly selected teenager plays video games for 550 minutes or more weekly (and is therefore at risk of eye strain). a. 0.9772 b. 0.0228 c. 2.00 d. 0.0344 e. 0.7580 3. Glucose is normally distributed with a mean of 54 mg/dl and standard deviation of 50 mg/dl. According to the National Institute of Diabetes and Digestive and Kidney Disorder, the normal Alc Hemoglobin level for a non-diabetic person is 5.6 or below. What is the probability that a randomly selected person has a normal level less than 5.6? a. 1.6% b. 97% c. 16.60% d. 9.7% e. 8.4% Testosterone levels in males assigned at birth are normally distributed with a mean of 679 ng/dL. If we take a random sample of 10 males assigned at birth, what is the probability that the sample mean will be at least 600 ng/dL with a sample standard deviation of 135 ng/dL? a. 0.05 b. 0.10 c. 0.90 d. 0.95 0.99 5. A study is conducted to assess the vitamin D levels of online MPH students. In the study, 250 graduate students are randomly selected and the sample mean of vitamin D levels is 41 ng/mL and the sample standard deviation is 16.6 ng/mL. If you were calculating a 95% confidence interval for the true mean of vitamin D, what would be the critical value