In a study of water pollution, a sample of mussels was taken and lead concentration (milligrams per gram dry weight) was measured from each one. The following data were obtained: {83, 110, 86,106,96,82,102,99,103,81,81,107,89,82,106,90}.Calculate the lower bound of the 95% confidence interval of the mean. Provide the answer in 3 decimal places. You may use JASP to calculate the measure, S.E. mean, and apply it to the formula of the 95% confidence interval for small sizes, i.e.

Calculate the lower bound of the 95% condence interval of the mean. Provide the answer in 3 decimal places. You may use JASP to calculate the measure, S.E. mean, and apply it to the formula of the 95% condence interval for small sizes, i.e. LB = 5: rdf - SEQc) Note. df=n1