Determine the minimum required sample size if you want to be 95% confident that the sample mean is within 21 units of the population mean given o = 97.9. Assume the population is normally distributed.
What is the critical value that corresponds to a level of confidence of 9595?
Round your answer to two decimals.
What is the minimum sample size required for this problem?
Round your answer up to the next integer

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.

a long term investor

step-by-step explanation:

because he is a long term investor