A business school director wants to estimate the mean anual salaries 5 years after students graduate. A random sample of 25 graduates found a sample mean of $42,740.0 and a sample deviation of $4,780.0 Find a 90% confidence interval for the pupultaion mean, assuming that the population distribution is normal.

i think 1: 2

step-by-step explanation:

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

answer: plz give a pic and answer choices so i can answer!

step-by-step explanation:

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.