Question

The confidence interval on estimating the heights of students is given as (5.4, 6.8). Find the sample mean of the confidence interval.

Answer 1

The sample mean is 6.1

Explanation:

Margin of Error (E) = (upper limit - lower limit)/2 = (6.8 - 5.4)/2 = 1.4/2 = 0.7

Sample mean = lower limit + E = 5.4 + 0.7 = 6.1