Listed below are the amounts of mercury(in parts permillion, orppm) found in tuna sushi sampled at different stores. The sample mean is 1.146 ppm and the sample standard deviation is 0.257 ppm. Use technology to construct a 90% confidence interval estimate of the mean amount of mercury in the population.

1.02, 1.45, 1.45, 0.88, 1.34, 0.97, 0.91

What is the confidence interval estimate of the mean amount of mercury in thepopulation?

ppm<< ppm

(Round to three decimal places asneeded.)