subject
Mathematics, 19.10.2021 07:10 megandalolipop

a water treatment plant needs to maintain the ph of the water in the reservoir at a certain level. to monitor this, they take 2 oz. of water at 37 locations every hour, measure the ph at each of those locations, and find their average. if the ph level of the reservoir is ok, the results at each location will have varying results, with an average ph of 8.5 and a standard deviation of 0.22. if the ph level of the reservoir is ok, what is the probability that the sample average is less than 8.42?

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:00, babydolltia28
Is a positive integer raised to a negative power always positive
Answers: 1
image
Mathematics, 22.06.2019 01:00, stjuliendeja
What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?
Answers: 3
image
Mathematics, 22.06.2019 01:00, shayshayyy41
Ataxi company charges $3 for pick-up plus $0.65 for each mile. select the expressions that represent the cost in dollars for a taxi pick-up and m miles. mark all that apply.
Answers: 1
image
Mathematics, 22.06.2019 04:30, pinkfluffyunicorns
The maximum distance (in nautical miles) that a radio transmitter signal can be sent is represented by the expression 1.23h√, where h is the height (in feet) above the transmitter. estimate the maximum distance x (in nautical miles) between the plane that is receiving the signal and the transmitter. round your answer to the nearest tenth.
Answers: 1
You know the right answer?
a water treatment plant needs to maintain the ph of the water in the reservoir at a certain level. t...

Questions in other subjects:

Konu
Mathematics, 10.12.2020 17:50