A calibration curve based on n 10 known points was used to m

A calibration curve based on n= 10 known points was used to measurea the protein in an unknown. The results were protein = 15.2₂ (+/- 0.4₆) micrograms, where the standard uncertainty is u_x=0.4₆ micrograms. Find the 90%, 95%, and 99% confidence intervals for the protein in the unknown.