Listed below are the amounts of mercury (in parts per million or ppm) found in tuna sushi in different stores. The sample mean is 0.900 and the standard deviation is 0.249. Use technology to construct a 90% confidence interval estimate of mean amount of mercury in population.
1.16 0.61 1.14 0.85 0.64 0.74 1.16
What is the confidence interval estimate of the mean of mercury in the population?