Please answer the following. Take a picture of your solution and box your answer. Then upload it for submission. 1. The percentage of students attending private schools is roughly 11%. A random sampling of 450 students from throughout the country revealed that 55 went to private schools. With 95% confidence, estimate the true proportion of students attending private schools. 2. Obesity is characterized as having a BMI of 30 kg/m or higher. A 95% confidence interval for the percentage of U.S. adults aged 20 years and over who were obese was found to be 22.4 to 23.5%. What was the minimum sample size? 3. A report indicated that 27% of children ages 2 to 5 years had a good diet-an increase over previous years. How large a sample is needed to estimate the true proportion of children with good diets within 2% with 95% confidence? 4. Find the 90% confidence interval for the variance and standard deviation of the ages of seniors at PATTS College if a sample of 24 students has a standard deviation of 2.3 years. Assume the variable is normally distributed. 1 Add file