The american fisheries society is interested in the effect of mercury contamination on largemouth bass in florida lakes. a sample of 53 fish were captured and the mercury concentration in the muscle tissue was measured (in ppm). the average mercury concentration of the sample is 0.525 ppm with a standard deviation of 0.348 ppm.
a. find a 95% confidence interval for the mercury concentration in all largemouth bass in florida lakes.
b. find a 99% confidence interval for the mercury concentration in all largemouth bass in florida lakes.
c. an afs scientist claims that the mercury concentration is between 0.45 and 0.60 ppm. with what level of confidence can this statement be made?

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.