An article in the asce journal of energy engineering ("overview of reservoir release improvements at 20 tva dams," vol. 125, april 1999, pp. 1-17) presents data on dissolved oxygen concentration from streams below 20 dams in the tennessee valley authority system. the sample mean from the observations is and the sample standard deviation is assume population is approximately normally distributed. round your answers to 2 decimal places. (a) calculate the 95% two-sided confidence interval on the mean oxygen concentration. (b) calculate the 95% two-sided prediction interval on the dissolved oxygen concentration for the next stream that will be tested. (c) find an interval that will contain 95% of the values of the dissolved oxygen concentration with 99% confidence.

points are handed out whenever you post answers.

brainliest answers are handed out by the person asking the question, so whether your answer is picked depends entirely on whether the asker bothers to pick

if you're asking about your rank, it depends on having a certain number of points and a certain number of brainliest answers. for example, at the time of this writing, i have 44338 points out of 15000 needed for the next (nearly triple the requirement! ) but i only have 24 out of 50 required brainliest answers. this number decays, meaning after a certain amount of time (i think about a month), the total number of brainliest answers you've earned doesn't count toward this total. (i've been stuck at the same rank for a long

the lesson to learn here is that you shouldn't worry about points or rank. chances are, no matter how good an answer you may provide, your efforts will go mostly unnoticed unless you focus on the newest/most active questions that get posted.

stop cheating

step-by-step explanation: