Water with 4.00 units of pollution or more, on average, of this type of measure is said to be contaminated. Is it reasonable to believe that this city’s river is contaminated? No. Because 4.00 is close to the upper bound of the interval, it is reasonable to believe the river is not contaminated.
No. Because the interval representing the mean amount of pollution is entirely below 4.00, it is reasonable to believe the river is not contaminated.
Yes. Because 4.00 is close to the upper bound of the interval, it is reasonable to believe the river is contaminated.
Yes. Because the interval representing the mean amount of pollution is entirely below 4.00, it is reasonable to believe the water is contaminated.