Homework SourseA student wanted to construct a 95 confidence interval for t
A student wanted to construct a 95% confidence interval for the average age of students in her statistics class. She randomly selected 9 students. Their average age was 20.3 years with a standard deviation of 1.7 years. What is the best point estimate for the population mean?
| 2.7 years | |
| 20.3 years | |
| 9 years | |
| 1.7 years |
Solution
point estimate = mean = 20.3
