1. Looking at your calibration curve (y=mx+c) what is the value of m.

(Note y is equivalent to [Pb] / ppm and x is counts second(-1)

2. Looking at your calibration curve (y=mx+c) what is the value of c.

(Note y is equivalent to [Pb] / ppm and x is counts second(-1)

3. What is the standard deviation in the concentration of lead, Pb, of

the six standards?

4. What is the approximate 95% confidence interval in the

concentration of lead, Pb, of the six standards?

Check the data set given in next file