(Solved): You applied a composite quadrature formula of order \( O\left(h^{5}\right) \) to estimate a define ...

You applied a composite quadrature formula of order \( O\left(h^{5}\right) \) to estimate a defined integral. When using 4 sub-intervals your estimation is \( 6.861 \) and when using 8 sub-intervals it is \( 6.862 \). The estimated absolute error for the value obtained with 8 sub-intervals is about a. \( 1.6 e-5 \) b. \( 6.3 \mathrm{e}-5 \) c. \( 7.8 \mathrm{e}-6 \) d. \( 3.2 \mathrm{e}-5 \)