0 00 9. A third student polled her class and wrote down the numbers from her data below she used the same population standard deviation as the first student (o- = 2.1). Find a 80% confidence interval...

Does anyone know the answer for 6&7

Extracted text: 0 00 9. A third student polled her class and wrote down the numbers from her data below she used the same population standard deviation as the first student (o- = 2.1). Find a 80% confidence interval for the population mena using a calculator. 1 2 17 0 6 5 3 4 2 0 1 15 2 2 4 2 1 0 06 2 On this assignment the teacher has 108 students over all and 79 passed the project. Find the point estimate of 7. this proportion by hand. Show your work for full credit. Show Your Work