Listed below are the amounts of mercury (in parts per million, or ppm) found in tuna sushi sampled at different stores. The sample mean is 1.156 ppm...

Listed below are the amounts of mercury​ (in parts per​ million, or​ ppm) found in tuna sushi sampled at different stores. The sample mean is 1.156 ppm and the sample standard deviation is 0.208 ppm. Use technology to construct a 90% confidence interval estimate of the mean amount of mercury in the population.

1.16, 1.31, 1.49, 0.83, 1.09, 1.04, 1.17

Question: What is the confidence interval estimate of the mean amount of mercury in the​ population?