In: Statistics and Probability
Express the confidence interval 743.8 < μ < 794.6 in the form of ¯ x ± M E . ¯ x ± M E = ±
Confidence interval in terms of sample mean and margin of error E is expressed as
- E < < + E
Comparing this confidence interval with 743.8 < < 794.6 , we get,
- E = 743.8 and + E = 794.6
Adding these two equations
2 = 743.8 + 794.6
= 769.2
Put this value of in equation + E = 794.6, and solve for E
769.2 + E = 794.6
E = 25.4
E = 769.2 25.4