Does the formula for confidence interval CI both when the standard deviation is known and unknown is different for large and small sample sizes?

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

360/29

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.