Below is a question from Reading 9 (quantitative) in Schweser:

Cannot get in the answer, what is the midpoint?

Coldplay forecasts the excess return on the S&P 500 for June 2017 to be 5% and the 95% confidence interval for the predicted value of the excess return on VIGRX for June 2017 to be 3.9% to 7.7%. The standard error of the forecast is closest to: A. 0.0080. B. 0.0093. C. 0.0111. This is a tricky question because you are given the confidence interval and its **midpoint** and asked to solve for the standard error of the forecast (sf). Remember to also convert the percentages to decimals. The critical two-tailed 5% t-value with 34 degrees of freedom is approximately 2.03. The midpoint, or predicted value is 0.0023 +1.1163 × **0.05** = 0.058. Therefore,