Negative, Nonlinear,
I hope this helped:)
Answer:
Test statistic,
(to 3 dp)
Step-by-step explanation:
Deviation, d = x -y
Sample mean for the deviation


Standard deviation: 


SD =2.93
Under the null hypothesis, the formula for the test statistics will be given by:


He charges 4.75 per lb....
so 5 lbs would cost (5 * 4.75) = $ 23.75 <==
Y = 3 because in a rectangle, the diagonals are ALWAYS congruent. so you would have:
5y - 2 = 4y + 1
-4y+2 -4y + 2
y = 3
Im not understanding what you are asking