Question Write a function rule for the relationship between the amount of plant food remaining, f(x), and the
number of days that have passed, x.
Type the correct answer in the box.
음 (0) 미
D
-
TE
sin cos tan sin-cos'tan i
a
β ε
9
x
0
- An
0
Uf0o
S
2
μ ρ
CSC seccot log log in
II
1
f(x) =
I
Question 3

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.