Note: each bound should be rounded to three decimal places. a random sample of n=100 observations produced a mean of x⎯⎯=36 with a standard deviation of s=5.
(a) find a 90% confidence interval for μ lower-bound: upper-bound:
(b) find a 99% confidence interval for μ lower-bound: upper-bound:
(c) find a 95% confidence interval for μ lower-bound: upper-bound:

Witch represents the inverse of the function f(x)=1/4x-12

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !