Salmon weights: assume that the weights of spawning chinook salmon in the columbia river are normally distributed. you randomly catch and weigh 17 such salmon. the mean weight from your sample is 19.2pounds with a standard deviation of 4.4 pounds. you want to construct a 90% confidence interval for the mean weight of all spawning chinook salmon in the columbia river.

(a) what is the point estimate for the mean weight of all spawning chinook salmon in the columbia river?
pounds

(b) construct the 90% confidence interval for the mean weight of all spawning chinook salmon in the columbia river. round your answers to 1 decimal place.
< ? <

l.ln.lln.k.nkl

step-by-step explanation:

a

b

d

step-by-step explanation:

"a" determine whether sage found the correct quotient. show your work

step-by-step explanation:

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

cretdit to source