Choose the best explanation for the model described by the residual plot. The model is a
Choose...
a. bad fit
b. good fit
for the data because the data are
Choose...
a. clustered at 1
b. not linear
c. randomly distributed above and below the x-axis.
d. too far from the x-axis.

PLEASE HELP ASAP!

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

Awindow has the shape of a rectangle with a semi circle at the top. find the approximate area of the window using the dimensions shown. 4ft by 8ft

Y=21.95x+10 y=22.45x solve by substitution