NOTE: for problem numbers 6. 8. 10 and 20 you must calculate the mean and standard deviation 14. Freshmen GP As First-semester GPAs for a random selection of freshmen at a large university are shown. Estimate the true mean GPA of the freshman class with 99% confidence. Assume o = 0.62 1.9 3.2 2.0 2.9 2.7 2.8 3.0 3.8 2.7 3.3 2.0 1.9 2.5 2.7 2.8 3.2 3.0 3.8 3.1 2.7 population 3.5 3.8 3.9 2.7 2.0 2.8 1.9 4.0 cep thition 2.2 2.1 Sunt to charg 2.8 2.4 3.0 3.4 2.9 2.1 15.Carbohydrate Grams in Commercial Subs The number of grams of carbohydrates in various commercially prepared 7-inch subs is recorded below. The population Page 380 standard deviation is 6.46. Estimate the mean number of carbs in all similarly sized subs with 95% confidence. June 1995 63 67 61 64 51 42 56 70 61 55 60 55 57 60 60 66 55 58 70 65 49 51 61 54 50 55 56 ed deviation for all idence 53 65 68 63 48 54 56 57