The lowest and highest observations in a population are 20 and 80, respectively What is the minimum sample size n required to estimate with 80 confidence if the desired margin of error is E 2 6 What happens to n if you decide to estimate with 95 confidence ...

With 80 confidence z 2 z 010 1282 Since is not gi ...

The lowest and highest observations in a population are 20 and 80, respectively. What is the minimum

Question:

The lowest and highest observations in a population are 20 and 80, respectively. What is the minimum sample size n required to estimate µ with 80% confidence if the desired margin of error is E = 2.6 ? What happens to n if you decide to estimate µ with 95% confidence?