Question

(PLEASE ANSWER + BRAINLIEST ANSWER)

Hydrologists collected water samples from a river for several years. They found 62 out of 648 samples exceeded the desired pH levels, with a 2% samples exceeded the desired pH levels, with a 90% confidence level. Which of the following is the most reasonable conclusion?

A. It is likely that the river water exceeds the desired pH level between 8% and 12% of the time studied.

B. It is likely that the river water exceeds the desired pH level between 10% and 12% of the time studied.

C. It is likely that the river water exceeds the desired pH level between 13% and 15% of the time studied.

D. It is likely that the river water exceeds the desired pH level between 11% and 15% of the time studied.

Answer 1

I would say b, if 90% is good, then somewhere around 10% would have to go over the desired level