Please compute the correct solution of the given question
Question- Using graphite furnace atomic absorption spectrometry, the mean cadmium (Cd2 ) content value in a homogenized sample of 40 zebra mussles was found to be 8.30 ppb Cd2 with a standard deviation (s) of 0.70 ppb Cd2 (assume that s is a good approximation of ?).
Part 1- Calculate the 90% and 95% confidence intervals (CI) for: i- two analyses of this homogenized sample and ii- five analyses of this homogenized sample.
I want help to find the confidence intervals two analyses of homogenized sample.