Environmental scientists are interested in estimating chloride concentrations at one site that is considered for some project. The mean concentration is to be estimated within 25m of the true mean with 95% confidence. If the budget for this project is $500 and each measurement costs $10, do we have sufficient funds to test needed samples? Justify your answer. In a pilot study of 10 samples the chloride concentrations (m) were recorded as follows: 82,64,126,416,125,89,97,36,132, and 146 .
