The mean annual incomes of aircraft mechanics are normally distributed with the mean of $40,000 and a standard deviation of $2,000. A local union representative wishes to find out whether their members earn more or less than $40,000 annually. If the level of significance is 0.05 and σ is known, what is/are the critical value(s) for a 2-tail test?

a box 3 3/4 feet long or 4+ feet.

step-by-step explanation:

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

answer: apothems is your answer

step-by-step explanation: hope u get it right