Calculating Error in calibration (1)
You have calibration a GFAAS for the detection of chromium over the rage of 1 ppb to 500 ppb. Using the information given in the table below, calculate the concentration of an unknown that gave a signal of 6523 mV and report Sx0 and the 95% CL error bars. Note that the standard error of the estimate, or Sy/x , is 173.8 and Sxx is 184,480