Hoffman, Jabaay, and Leuer did a study of pencil lead strength. They loaded pieces of lead of the same diameter (supported on two ends) in their centers and recorded the forces at which they failed. Part of their data are given here (in grams of load applied at failure). 4H Lead:56.7, 63.8, 56.7, 63.8, 49.6
H Lead:99.2, 99.2, 92.1, 106.0, 99.2
B Lead: 56.7, 63.8, 70.9, 63.8, 70.9
A) In applying the methods of this chapter in the analysis of these data, what model assumptions must be made? Make three normal plots of these samples on the same set of axes and also make a normal plot of residuals for the one-way model as means of investigating the reasonableness of these assumptions. Comment on the plots.
B) Compute a pooled estimate of variance based on these three samples. What is the corresponding value of sp?

the length of o'p' is .

step-by-step explanation:

it is given that the quadrilateral m'n'o'p' is the image of quadrilateral mnop after dilation.

the center of dilation is origin and the scale factor is 1.5.

in dilation the image and preimge are similar figures. it means the sides of image and preimage are proportional.

the scale factor is defined as

the scale factor is 1.5.

multiply both sides by op.

note: if the value of op is given, then multiply the value of op with 1.5 to get the length of side o'p'.

therefore length of o'p' is .

what is

step-by-step explanation:

answer: 5 17/33 % (to the tenth)

step-by-step explanation:

he guessed: 34.5 pounds

actual weight is 32.7

there for he is off:

34.5 -32.7 = 1.8

32.7 is the 100%

1.8 represents %? of 32.7

therefore:

32.7   - 100%

1.8     -     x%

x= 1.8*100%/32.7% = 18*100%/327%

x=1800%/327%   = (5 165/327)%

to the tenth:

5 17/33 %