Question

A food safety guideline is that the mercury in fish should be below 1 part per million​ (ppm). Listed below are the amounts of mercury​ (ppm) found in tuna sushi sampled at different stores in a major city. Construct a

9999​%

confidence interval estimate of the mean amount of mercury in the population. Does it appear that there is too much mercury in tuna​ sushi?

0.550.55  

0.790.79  

0.100.10  

0.980.98  

1.361.36  

0.530.53  

0.910.91

  

What is the confidence interval estimate of the population mean

muμ​?

nothing

ppmless than<muμless than<nothing

ppm

Answer 1

from above 99% CI =0.18 < < 1.31

as our interval contains values above 1.0 ppm ; therefore we can not reject that there is too much mercury in tuna​ sushi