Answer:
Yes
Step-by-step explanation:
First, we need to find how many cars out of the entire fleet fail the test
4/32 = x/150
Cross multiply to find x
32x = 150(4)
32x = 600
32x/32 = 600/32
x = 18.75
I'll round it to 19. So 19 out of 150 cars fail the test. Find the percentage of this and compare it to the 30% estimate
19 /150 = 0.127
0.127(100) = 12.7%
12.7% is obviously lower than 30% so yes it is strong evidence the percentage of the fleet out of compliance is different from their initial thought
21.5, just took the test!!!!
Answer:700
Step-by-step explanation:466
Answer:
A, B, D
Step-by-step explanation:
A is true. From week 5 to week 11, the curve goes down.
B is true. After week 11, the curve goes up.
C is false. The curve passes $320 twice in the first ten weeks, not three times.
D is true. The curve starts at about $110.
E is false. As time increases, the graph goes up. As time decreases, the graph goes down.